- Lionel Jospin (Prime Minister of France) mentor to Bertrand Delanoe (Mayor of Paris)
- Pierre Mendes-France mentor to Pierre Beregovoy (former Prime Minister of France)
- Jacques Chirac (former Prime Minister of France) mentor to Édouard Balladur
- Georges Pompidou mentor to Francois Mitterrand (Prime Minister of France)
- Georges Clemenceau (French republican leader) mentor to Georges Ernest Boulanger (French general and politician)
- Pierre Poujade mentor to Jean-Marie LePen
- Andre Cools (late vice prime minister of Belgium) mentor to Alain Van de Biest (regional minister in Belgium)
- Goukouni Weddeye (President of Chad) mentor to Hissen Habre (defense minister of Libya)
- Walter Sisulu mentor to Nelson Mandela and Thabo Mbeki (President of South Africa)
- Lazer Sidelsky legal mentor to Nelson Mandela
- Yasser Arafat (Palestinian leader) mentor to Hisham Miki (Palestinian TV chief)
- Hendrik Verwoerd (former prime minister of South Africa) mento to Joannes Balthazar Vorster (former prime minister and president of South Africa)
- Robert Mugabe (Zimbabwe President) mentor to Sam Nujoma (President of Namibia)
- Nicholas Briwott (Kenya minister) mentor to George Saitoti (Kenya vice-president)
- Antonín Novotny (Czechoslovokain Communist leader) mentor to Alexander Dubêek (Czech statesman who initiated the "Prague Spring")
- Georgy Valentinovich Plekhanov mentor to Vladimir Illich Lenin
- Boris Yeltsin mentor to Vladimir Putin and Sergei Kiriyenko (Prime Minister)
- Joseph Stalin mentor to Nikita Sergeyevich Khrushchev
- Leonid Ilyich Brezhnev (Soviet leader) mentor to Konstantin Ustinovich Chernenko (Soviet political leader)
- Yuri Vladimirovich Adropov (Soviet communist leader) and Alexander Yakovlev (former Soviet ambassador to Canada) mentors to Mikhail Sergeyevich Gorhachev
- Mátyás Rákosi (former Prime Minister of Hungary) mentor to András Heged (former Prime Minister of Hungary)
- Yitzhak Rabin mentor to Ehud Barak
- Moshe Arens mentor to Benjamin Netanyahu
- David Ben-Gurion (first Prime Minister of Israel) mentor to Moshe Dayan (soldier and statesman) and Shimon Peres (former Prime Minister of Israel)
- George Mason mentor to Thomas Jefferson (3rd President of the US)
- Thomas Jefferson (3rd President of the US) mentor to Meriwether Lewis (explorer)
- George Wythe (jurist, legal scholar) mentor to Thomas Jefferson (who as a result created a mentors program at the University of Virginia)
- Andrew Jackson (7th President of the US) mentor to Sam Houston (founder of Texas)
- Thurlow Weed (American journalist and founder of the Whig Party) mentor to Millard Fillmore (13th US President)
- Jefferson Davis (US Confederate President) mentor to Austin Dahlgren (writer)
- James A. Garfield (20th President of the US) born in Mentor, Ohio
- Roscoe Conkling (former US Senator) mentor to Chester A. Arthur (21st President of the US) and Thomas Collier Platt (19th century American legislator)
- Marcus Alonzo Hana (American politician and businessman) mentor to William McKinley (25th President of the US)
- Brander Matthews (Columbia University professor) mentor to Theodore Roosevelt (26th President of the US)
- Theodore Roosevelt (26th President of the US) mentor to William Howard Taft (27th President of the US)
- Joseph Foraker (US senator, Ohio) mentor to Warren Gamaliel Harding (29th President of the US)
- Louis McHenry Howe mentor to Franklin Delano Roosevelt (32nd President of the US)
- Franklin D. Roosevelt (32nd President of the US) mentor to Edward R. Stettinius, Jr. (former US Secretary of State)
- Thomas J. Pendergast (political party activist) mentor to Harry S. Truman (33rd President of the US)
- Sitting Bull (Lakota Chief) mentor to Gall (Hunkpapa Chief)
- Tom Scott (Wall Street investor) mentor to Andrew Carnegie (philanthropist)
- Ralph Bunche (African-American mediator, UN diplomat, Nobel Peace Prize winner, basketball player Bio) mentored by Charles Henry Reiber (UCLA philosophy professor and first dean of the College of Letters and Science) and Sy Lipton (UCLA basketball coach)
- Major General Fox Connor mentor to Dwight David Eisenhower (34th President of the US)
- John F. Kennedy (35th President of the US) mentor to Rey A. Carr (CEO of Peer Resources)
- Mike Mansfield (late US Senator/Montana) mentor to Ted Stevens (US Senator/Alaska) and Patrick Leahy (US Senator/Vermont)
- Richard B. Russell (late US Senator/Georgia) and Franklin Delano Roosevelt (32nd President of the US) mentors to Lyndon Baines Johnson (36th President of the US)
- Lyndon B. Johnson (36th President of the US) mentor to John B. Connolly (former US cabinet member) and Barbara Charline Jordan (US lawyer, politician and teacher)
- Richard Nixon (37th President of the US) and Neil Mallon (former president of Dresser Industries) mentors to George Bush (41st President of the US) and Robert Dole (former Senator/Kansas and presidential candidate)
- Admiral Hyman Rickover (bio) mentor to Jimmy Carter (39th President of the US)
- Bob Bullock (former Texas Lt. Governor) and Condoleeza Rice mentors to George W. Bush (44th President of the US)
- General Brent Scowcraft (former National Security Advisor to former US President George Bush), George Shultz (former US secretary of state, Bio) and Joseph Korbel (university professor) mentors to Condoleezza Rice (National Security Advisor to 44th US President George W. Bush)
- Ronald Reagan (40th President of the US) mentor to Christine Todd Whitman (Governor of New Jersey)
- George Bush (42nd President of the US) mentor to James Baker (former US Secretary of State and White House Chief of Staff for US President Ronald Reagan)
- James Baker mentor to John Bolton (US State Department)
- Robert Squier (political advisor) mentor to Albert Gore, Jr. (former Vice-President of the US)
- Al Gore Jr. mentor to Joseph I. Lieberman (US Senator, Connecticutt)
- Bill Bradley (former US Senator) mentor to Cory Booker (New Jersey politician)
- Daniel Patrick Moynihan (late US Senator-NY) mentor to Joe Biden (US Senator-DE)
- Jesse Ventura (governor of Minnesota) mentor to Dean Barkley (US Senator, Minnesota)
- William Fulbright (former US Senator) mentor to William J. Clinton (43rd President of the US)
- Cyrus Vance (former US Secretary of State during Carter administration) mentor to Warren Christopher (US Secretary of State during Clinton administration)
- Caspar Weinberger (former US Secretary of Defense, 1980-87 and chairman of Forbes magazine) mentor to Colin Powell (US Secretary of State)
- Karl Rove (political strategist Bio) mentor to Margaret La Montagne (domestic policy advisor to US President George W. Bush)
- Sir David Spedding (former head MI-6 and model for James Bond) mentor to George Tenet (CIA director)
- Donald Rumsfield (US Secretary of Defense) mentor to Dick Cheney (US Vice-President)
- Gary Condit (former US congressman) mentor to Dennis Cardoza
- David Boren (former US Senator/Oklahoma Bio) mentor to George Tenet (CIA Director Bio)
- Trent Lott (Senator/Mississippi) mentor to Curt Hebert (US Energy Commission)
- Hubert Humphrey (former US Vice-President and Senator, Minnesota) mentor to Walter Frederick Mondale (former US Vice-President and Senator, Minnesota)
- George Wallace (former presidential candidate and governor of Alabama) mentor and husband to Lurleen Wallace (former governor of Alabama)
- Richard Johnson (vice-president of the US under Martin Van Buren and reputed to have killed Tecumseh) middle name was Mentor
- Philip Burton (former congressman) mentor to Willie Brown (mayor of San Francisco)
- Tip O'Neill (former Speaker of the US House of Representatives) mentor to Joe Moakley (Congressman, Massachusetts)
- Richard J. Dayley (late mayor of Chicago) mentor to Jane M. Byrne (first woman mayor of Chicago)
- Edmund Sixtus Muskie (late US senator/Maine and presidential candidate) mentor to George John Mitchell (former US senator)
- George Catlett Marshall (American armed forces general and US cabinet minister) mentor to Dwight David Eisenhower, Omar Bradley, Mark Clark and Joseph Stillwell (all US military generals)
- Zbigniew Brezinski mentor to Madeleine Allbright (US Secretary of State)
- Henry Kissinger (US political advisor) mentor to Alexander Haig (former US Secretary of State) (or was it the other way around?)
- Johann de Kalb (American general at Valley Forge with George Washington) mentor to Lafayette
- Sam Rayburn (late member of the US House of Representatives/Texas) mentor to Carl Albert (former speaker of the US House of Representatives)
- George E. Pataki (governor of New York) mentor to Betsy McCaughey Ross (Lt. Governor of New York)
- Parris Glendenning (governor of Maryland) and Ruth Kovnat (University of New Mexico law professor) mentors to Kathleen Kennedy Townsend (first woman to be Lt. Governor of Maryland)
- Alfonse M. D'Amato (Senator/New York) mentor to George E. Pataki (Governor of New York)
- Pilar Barbosa de Rosario (Puerto Rican historian) described as mentor to generations of Puerto Rico's politicians
- Luis Munoz Marin (Puerto Rico ruler) mentor to Roberto Sanchez Vilella (first elected governor of Puerto Rico)
- William O. Douglas (former US Supreme Court Justice) mentor to Abe Fortas (former US Supreme Court Justice)
- Learned Hand (former US Supreme Court Chief Justice) mentor to Gerald Gunther
- Louis D. Brandeis (former US Supreme Court Justice) mentor to Felix Frankfurter (former US Supreme Court Justice)
- Lewis Powell (former US Supreme Court Justice) mentor to Sandra Day O'Connor (US Supreme Court Justice)
- Felix Franfurter mentor to Philip Leslie Graham (publisher)
- Charles Houston (first full-time counsel for the NAACP Bio) and Lillie Carroll Jackson (woman's and civil rights activist) mentors to Thurgood Marshall (former US Supreme Court Justice)
- Oliver Wendell Holmes, Jr. (former US Supreme Court Justice) mentor to Alger Hiss (lawyer, peace activist)
- William Kunstler (radical lawyer) mentor to Ronald L. Kuby (defense lawyer)
- Oliver Goldsmith mentor to Thomas Paine
- General Zachary Taylor and General Winfield Scott considered mentors to American military in the Mexican-American War including Robert E. Lee, U.S. Grant, Thomas Stonewall Jackson, George McClellan and others
- John P. Altgeld (social activist) mentor to Clarence Darrow (reformer and lawyer)
- George Monroe (photographer) mentor to George Eastman (photograher and inventor)
- William Lloyd Garrison (US abolitionist) mentor to Frederick Douglass (foremost US Black leader of the 19th century)
- Elizabeth Cady Stanton (leader of US suffrage movement) mentor to Susan B. Anthony (women's rights activist)
- Mercy Otis Warren mentor to Abigail Adams
- Barbara Miller Solomon (women's rights advocate) described as mentor to many women
- Jeanne Caroline Smith Carr (feminist, botanist) mentor to John Muir (poet, naturalist)
- Anne Sullivan mentor to Helen Keller
- Eugene V. Debs mentor to John Gardner
- Walter Reuther (former president of the United Auto Workers union) mentor to Leonard Freel Woodcock (American labor leader)
- Zellig Harris (linguistics professor) mentor to Noam Chomsky (writer, political activist)
- George Stigler and Milton Friedman (economists) mentors to Gary Becker (Nobel prize winner in Economics)
- Ludwig von Mises (economist) mentor to Frederick von Hayek (Nobel laureate economist) and Ronald Reagan (former US president)
- Frederich von Hayek (Austrian economist) mentor to Jimmy Lai (Hong Kong ebusiness billionaire)
- Raymond B. Fosdick mentor to John D. Rockefeller
- Daniel Ford (19th century popular magazine editor) mentor to Francis Bellamy (creator of the US Pledge of Allegiance)
- John Dewey (philospher and educator) mentor to Sidney Hook (American educator and social activist), George Geiger (Antioch philosophy professor) and Max Eastman
- Dr. Benge Atlee (Halifax physician) mentor to Dr. Murray Davis
- Mentor Marsh State Nature Preserve is located at Headlands Beach State Park in Mentor, Ohio
- Jean-Martin Charcot (founder of clinical neurology, bio) and Josef Breuer (first to use cathartic method to cure hysteria) mentors to Sigmund Freud
- Sigmund Freud mentor to C.G. Jung
- Henry Havelock Ellis (physician, psychologist, author) mentor to Margaret Sanger (pioneer activist for birth control, Bio)
- Samuel C. Armstrong (Bio) mentor to Booker T. Washington (Bio)
- John Newton (a former slave trader who became a clergyman and hymn writer including Amazing Grace) mentor to William Wilberforce (politician who led the movement to abolish slavery in Great Britain)
- Booker T. Washington mentor to William Henry Holtzclaw (founder, Utica Institute)
- Pastor Jim Lawson and Rev. Melvin Watson mentors to Martin Luther King, Jr.
- Dr. Martin Luther King, Jr. mentor to Jesse Jackson and John Lewis (civil rights activist
- Dr. Benjamin E. Mays mentor to Dr. Martin Luther Ling Jr.
- Mahatma Gandhi mentor to Dr. Martin Luther King, Jr.
- Malcolm X mentor to Louis Farrakhan
- The Beverly Foundation is on Mentor Avenue in Pasadena, California
- Dr. Alexis Carrel mentor to Charles Lindbergh
- Richard Hofstader mentor to Lawrence Levine (US historian)
- Bertrand Russell (Bio) mentor to Karl Ponder (philosopher) and Ludwig Wittgenstein (philosopher)
- Dale L. Morgan (Mormon historian) mentor to Juanita Brooks and Fawn Brodie (Mormon history scholars)
- G.I. Gurdjieff (Russian philosopher) mentor to William Charles Segal (painter and magazine publisher) and Olgivanna Wright (wife of Frank Lloyd Wright)
- Vissarion Belinsky (father of Russian radical intelligentsia) mentor to Ivan Sergeyevich Turgenev (Russian writer)
- Ralph Waldo Emerson mentor to Henry David Thoreau
- Edward Everett (Unitarian minister) mentor to Ralph Waldo Emerson
- Dr. Samuel Johnson mentor to James Boswell
- Alfred North Whitehead (philosopher, mathematician, author, Process and Reality) mentor to Susanne Knauth Langer (philosopher, author Mind: An Essay on Human Feeling)
- Hermann Hesse mentor to Hans Carossa (German poet and novelist)
- Thomas Cromwell mentor to Richard Grafton (16th century London publisher and printer)
- Junipero Serra (Spanish missionary) mentor to Francisco Palou (Franciscan historian)
- You can see Mentor Street in Kouts, Indiana from the Erie-Lackawana railroad tracks
- José Tomás Canales (Texas historian) mentor to Carlos Castaña (mystic, anthropologist)
- Annie Besant (English social reformer and theosophist) mentor to Jiddu Krishnamurti (Indian religious figure)
- Sir Charles Hanbury-Williams (British envoy) mentor to Catherine II (Empress of Russia)
- Thomas Becket mentor to King Henry II
- Cardinal Richelieu (French prelate and statesman) mentor to Jean Desmarets de Saint-Sorlin (French poet and dramatist) and Cardinal Jules Mazarin (First Minister of France under Louis XIV)
- Michel de Montaigne (French Renaissance thinker and writer Bio) mentor to Marie de Bournay
- Margaret of Navarre mentor to Bonaventure Des PŽriers (French humanist)
- Marie de' Medici mentor to Cardinal Richelieu (Armand Jean du Plessis, duc de Richelieu)
- Sir Richard Rees mentor to George Orwell
- John Stuart Mill mentor to Jeremy Bentham
- Prince von Metternich mentor to Friedrich Gentz and Francis Joseph (Emperor of Austria and King of Hungary)
- John Cateret (Earl of Granville) mentor to King George II
- John Stuart (Third Earl of Bute Bio) mentor to King George III
- Robert Carr (Viscount of Rochester and Earl of Somerset) mentor to Sir Thomas Overbury (English writer imprisoned in the Tower and poisoned by Lady Essex)
- King Louis I (Poland) mentor to Charles of Durazzo (conquerer of Naples)
- Augustin de Robespierre mentor to Napoleon Bonaparte
- HMS Mentor (an 18th century British Navy ship)
- "The Mentor" (An American magazine published 1913-1931)
- Archimedes mentor to Galileo
- Galileo mentor to Ferdinand II (Grand Duke of Tuscany) and Evangelista Torricelli (inventor of the barometer)
- Lorenzo de Medici (Florentine statesman) mentor to Politan (Italian poet)
- Brunetto Latini mentor to Dante Alighieri (of Firenze)
- Polybius (Roman explorer) mentor to Scipio Aemilianus (Roman general)
- Pompey the Great mentor to Marcus Terentius Varro (Roman scholar)
- Lucius Aelius Sejanus (Praetorian Guard commander) mentor to Pontius Pilate
- Johann von Staupitz mentor to Martin Luther
- Julius Caesar mentor to Mark Antony and Caius Trebonius (Roman politician)
- Julian (4th century Roman emperor) mentor to Eutropius (Roman historian)
- Flavius Stilicho (Roman general) mentor to Claudian (Roman poet)
- Euphronius (Bishop of Tours) mentor to Georgius Florentius (St. Gregory of Tours)
- Elijah mentor to Elisha (Israelite prophet)
- Saul (first king of the ancient Hebrews) mentor to David (king of ancient Israel)
- Socrates mentor to Plato
- Aristotle mentor to Alexander the Great
- Antisthenes of Athens mentor to Diogenes
- Merlin mentor to King Arthur
- Leucippus (philosopher) mentor to Democritus (Greek philosopher who devised the atomic theory of the universe, also known as the Laughing Philospher)
- Chiron mentor to Odysseus
- Aristaeus (Greek mythology figure who invented beekeeping) mentored by nymphs
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