L
- Steve Lach (1946–1947)
- Dave LaCrosse (1977)
- Bo Lacy (2004)
- Pete Ladygo (1952–1954)
- Bill Lajousky (1936)
- Carnell Lake (1989–1998), (2011)
- Joe Lamas (1942)
- Frank Lambert (1965–1966)
- Jack Lambert (1974–1984)
- Lowell Lander (1956)
- Montgomery Lantz (1933)
- Chuck Lanza (1988–1990)
- Dan LaRose (1964)
- Lou Lassahn (1938)
- Dick Lasse (1958–1959)
- Johnny Lattner (1954)
- Ted Laux (1943)
- Hubbard Law (1942–1947)
- Ben Lawrence (1987)
- Bobby Layne (1958–1965)
- Paul Lea (1951)
- Bob Leahy (1970–1971)
- Gerald Leahy (1957)
- Dick LeBeau (1992–1996, 2004–2011)
- Bernard Lee (1938)
- Danzell Lee (1987)
- Greg Lee (1988)
- Herman Lee (1957)
- John Lee (1939)
- Dick Leftridge (1966)
- Byron Leftwich (2008, 2010–2011)
- Doug Legursky (2008–2011)
- Ray Lemek (1962–1965)
- Matt Lentz (2007)
- Jim Leonard (1942–1945)
- Tim Lester (1995–1998)
- Jim Letsinger (1933)
- Lou Levanti (1951–1952)
- Jim Levey (1934–1936)
- Darcy Levy (2002)
- Art Lewis (1960–1961)
- Frank Lewis (1971–1977)
- Joe Lewis (1958–1960)
- Keenan Lewis (2009–2011)
- Marvin Lewis (1992–1995)
- Roy Lewis (2008–2009)
- Tim Lewis (1995–2003)
- Dave Liddick (1957)
- Bob Ligashesky (2007–2009)
- Mike Lind (1965–1966)
- Louis Lipps (1984–1991)
- Gene Lipscomb (1961–1962)
- David Little (1981–1992)
- Carl Littlefield (1939–1941)
- Greg Lloyd (1987–1997)
- Steve Loch (1947)
- Charles Lockett (1987–1988)
- Chuck Logan (1964)
- Mike Logan (2001–2006)
- Stefan Logan (2009)
- Bill Long (1949–1950)
- Jim Long (1966)
- Terry Long (1984–1991)
- Ken Longenecker (1960–1961)
- Don Looney (1941–1942)
- Mike Lorello (2006–2007)
- Andre Lott (2006)
- John Lott (1987)
- Kamil Loud (2000)
- Love (1934)
- Duval Love (1992–1994)
- Reggie Lowe (1999)
- Jack Lowther (1945)
- Dick Lucas (1958–1959)
- Jeff Lucas (1987)
- John Lucente (1945)
- Alex Lukachick (1942)
- Bob Luna (1959)
- Booth Lusteg (1968)
- Mitch Lyons (1997–1999)
Read more about this topic: List Of Pittsburgh Steelers Players