Authors born in 1955
- L. Brent Bozell III Activist, 1955
- Laura Amy Schlitz Librarian, 1955
- Laurie Metcalf Actress, 1955
- Leah Ward Sears Lawyer, 1955
- Lena Olin Actress, 1955
- Leon Eric Brooks III Artist, 1955
- Lesley Garrett Singer, 1955
- Leslie McKeown Singer, 1955
- Li Keqiang Politician, 1955
- Lindsey Graham Politician, 1955
- Linwood Barclay Actor, 1955
- Lionel Barber Journalist, 1955
- Lisa Frank Businesswoman, 1955
- Lisa Scottoline Author, 1955
- Lisa See Writer, 1955
- Liu Xiaobo Writer, 1955
- Liza Donnelly Cartoonist, 1955
- Loretta Napoleoni Journalist, 1955
- Luanne Rice Novelist, 1955
- Lubna Olayan Businesswoman, 1955
- Luis Alberto Urrea Poet, 1955
- Lynne Truss Author, 1955
- Mamata Banerjee Politician, 1955
- Mara Liasson Journalist, 1955
- Margaret Hamburg Physician, 1955
- Margaret Heffernan Businesswoman, 1955
- Margaret Moran Politician, 1955
- Maria Shriver Journalist, 1955
- Marianne Rosenberg Singer-Songwriter, 1955
- Mariano Rajoy Politician, 1955
- Marina Sirtis Actress, 1955
- Maripol Artist, 1955
- Mark Boone Junior Actor, 1955
- Mark Hollis Musician, 1955
- Mark McKinnon Political Adviser, 1955
- Mark Parker Businessman, 1955
- Martin Jackson Drummer, 1955
- Mary Beard Scholar, 1955
- Mary E. Pearson Children'S Writer, 1955
- Mary Karr Poet, 1955