F
- John Adams, 2nd President of the United States, statesman, diplomat
- John Quincy Adams, 6th President of the United States, statesman, diplomat
- James Agate, writer and critic
- Louisa May Alcott, novelist
- Isaac Ambrose, Puritan
- Henri-Frederic Amiel, philosopher, poet, and critic
- Ananda Ranga Pillai, dubash of French India.
- Harriet Arbuthnot, 19th century English diarist and close associate of Arthur Wellesley, 1st Duke of Wellington
- Martha Ballard, midwife and healer
- Darren Baldwin
- W. N. P. Barbellion, naturalist, essayist and short story writer
- Marie Bashkirtseff (1858–1884), painter and sculptor
- Libby Beaman (1844–1932), first non-native woman in Pribilof Islands
- Peter Hill Beard, photographer in Africa
- Ruth Benedict, anthropologist
- Tony Benn, British politician
- Alan Bennett, writer, playwright
- Arnold Bennett, novelist
- Adolfo Bioy Casares, Argentine fiction writer and frequent collaborator of Jorge Luis Borges.
- Nicholas Blundell (1669–1737) (diary 1711–1728)
- Violet Bonham Carter, British politician, daughter of Prime Minister Herbert Henry Asquith
- Stanley Booth, chronicled his personal experiences with music personalities of the 1960s and 1970s
- James Boswell, chronicler of Samuel Johnson
- Vera Brittain, author and feminist
- Reader Bullard (1885–1976), British diplomat
- Fanny Burney, novelist
- William Byrd II, Colonial American diarist
- Meg Cabot, YA author
- Alastair Campbell, British journalist, broadcaster and author
- Emily Carr, artist
- Jim Carroll, author, poet, and musician
- Lewis Carroll, writer and mathematician
- Henry "Chips" Channon (1897–1966) British politician and author
- John Cheever, American novelist
- Claire Lee Chennault, US World War II General. Head of the legendary Flying Tigers.
- Mary Chesnut, described life in South Carolina during the American Civil War
- Alan Clark (1928–1999) British politician and historian
- Andrew Clark (1856–1922), British diarist and cleric
- Ralph Clark, British naval officer
- Galeazzo Ciano, Mussolini's foreign minister
- Kurt Cobain, rock musician, Nirvana's lead singer
- Mary Coke (1727–1811), English diarist and correspondent
- Richard Crossman, British politician and writer
- Aleister Crowley, British occultist and poet
- Adam Czerniaków, head of the Warsaw Ghetto's Judenrat
- Thomas Dallam (1570-after 1614), organ builder (diary 1598-1599, voyage to and description of Turkey)
- Charles Lutwidge Dodgson: see Lewis Carroll
- George Bubb Dodington, British politician and nobleman
- Pete Doherty, rock musician (Babyshambles), ex-Libertines
- Anna Dostoyevskaya, wife of Fyodor Dostoevsky
- Fyodor Dostoevsky, author
- Marguerite Duras, author
- Bob Dylan, musician
- Isabelle Eberhardt
- Mircea Eliade, Romanian historian of religion and mythologist
- George Eliot, writer
- Edward Robb Ellis, writer and reporter
- Ralph Waldo Emerson, writer
- John Evelyn, writer and gardener
- Marianne Faithfull, singer and actress
- Eliza Fay (1756–1616), four visits to India
- Celia Fiennes (1652–1741), diarist traveller
- Zlata Filipović, diarist in Sarajevo during the Yugoslav war
- Marjorie Fleming (1803–1811), child diarist
- Miles Franklin, Australian author
- Donald Friend, Australian artist
- F. Scott Fitzgerald, writer
- Anne Frank, hid from the Nazis during World War II
- Elizabeth Freke (1642–1714) (diary 1671–1714)
- Elizabeth Wynne Fremantle, husband of Thomas Fremantle (Royal Navy officer) and main author of The Wynne Diaries (1789–1857)
- Max Frisch, playwright and novelist
- Buckminster Fuller, designer and engineer
Read more about this topic: List Of Diarists, A