Authors born in 1974
- Julia Butterfly Hill Environmentalist, 1974
- K. Sello Duiker Novelist, 1974
- Kadir Nelson Illustrator, 1974
- Kajol Actress, 1974
- Kaoru Musician, 1974
- Kari Byron Television Host, 1974
- Karisma Kapoor Actress, 1974
- Karrie Webb Golfer, 1974
- Kate Brian Author, 1974
- Kate Dillon Levin Actress, 1974
- Kate Moss Businesswoman, 1974
- Katherine Marsh Writer, 1974
- Kathleen Rose Perkins Actress, 1974
- Kathryn Scott Songwriter, 1974
- KAWS Artist, 1974
- Kay Cannon Screenwriter, 1974
- Keith Duffy Singer-Songwriter, 1974
- Keith Getty Singer, 1974
- Kelly Jones Singer-Songwriter, 1974
- Ken Jennings Author, 1974
- Kenya Barris Producer, 1974
- Keren Ann Singer, 1974
- Kevin Connolly Actor, 1974
- Kevin Durand Actor, 1974
- Kevin Kwan Novelist, 1974
- Kidada Jones Actress, 1974
- Kim Dotcom Entrepreneur, 1974
- Kristina McMorris Author, 1974
- L. Todd Rose Scientist, 1974
- Lark Voorhies Singer, 1974
- Laura Pausini Singer-Songwriter, 1974
- Laz Alonso Film Actor, 1974
- Lecy Goranson Actress, 1974
- Lee Pearson Athlete, 1974
- Leonard Little Football Player, 1974
- Leonardo DiCaprio Actor, 1974
- Leslie Bibb Actress, 1974
- Lisa Graff Author, 1974
- Louise Nurding Singer, 1974
- Lucy Powell Politician, 1974