People beginning with L
- Lignac, George Otto Emil
- Lillehei, Clarence Walton
- Lillie, Ralph Dougall
- Linarelli, Louie G.
- Lindau, Arvid Vilhelm
- Lindegaard, Karl-Fredrik
- Lindenov, Harald
- Linder, David
- Lindqvist, Johan Torsten
- Lindström, Clas G.
- Lipliawsky, Semjou
- Lipschütz, Benjamin
- Lisa, Mona
- Lisch, Karl
- Lisch, Walter
- Lisfranc de St. Martin, Jacques
- Lissauer, Heinrich
- Lister, Joseph
- Littre, Alexis
- Litzmann, Carl Conrad Theodor
- Lobstein, Jean Georges Chrétien Fréderic Martin
- Locke, Frank Spiller
- Loewenthal, Leonard Joseph Alphonse
- Loeys, Bart L.
- Löffler, Wilhelm