- Leon Trotsky
- Leonard Bernstein
- Leonard Cohen
- Leonard Louis Levinson
- Leonardo da Vinci
- Leontyne Price
- Lera Auerbach
- Leroy Brownlow
- Les Brown
- Les Dawson
- Les Ferdinand
- Leslie Nielsen
- Lester B. Pearson
- Letitia Elizabeth Landon
- Lev Grossman
- Levi Furbush
- Lewis B. Hershey
- Lewis B. Smedes
- Lewis Carroll
- Lewis L. Lewisohn
- Lewis Mumford
- Liane Cordes
- Lilith Saintcrow
- Lillian Gish
- Lillian Gordy Carter
- Lillian Hellman
- Lily Tomlin
- Lin Yutang
- Linda Festa
- Linda Grayson
- Linda Merkin
- Linus Pauling
- Lisa Kirk
- Livy
- Liz Smith
- Liza Minnelli
- Ljupka Cvetanova
- Lloyd Alexander
- Lloyd Shearer
- Logan Pearsall Smith
- Lois Lowry
- Lois McMaster Bujold
- Lois Wyse
- Lord Acton
- Lord Byron
- Lorraine Hansberry
- Lorrie Moore
- Lou Holtz
- Louis A. Berman
- Louis Agassiz