The following is a list of players, both past and current, who appeared in at least one regular season or postseason game for the Pittsburgh Steelers NFL franchise. Note: The years listed are those in which players made an appearance in a game.
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Walter Abercrombie (1982–1987) Ed Adamchik (1965) Bob Adams (1969–1971) Flozell Adams (2010) Mike Adams (1997) Mike Adams (2012–2014) Montravius Adams (2021–present) Ben Agajanian (1945) Dick Alban (1956–1959) Tom Alberghini (1945) Art Albrecht (1942) John Alderton (1953) Brent Alexander (2000–2003) Chuck Allen (1970–1971) Cortez Allen (2011–2015) Duane Allen (1965) Jimmy Allen (1974–1977) Lou Allen (1950–1951) Marcus Allen (2018–2022) Will Allen (2010–2015) Don Alley (1969) John Allred (2002) Lyneal Alston (1987) Tyson Alualu (2017-present) Rudy Andabaker (1952–1954) Anthony Anderson (1979) Art Anderson (1963) Chet Anderson (1967) Fred Anderson (1978–1979) Gary Anderson (1982–1994) Jesse Anderson (1992) Larry Anderson (1978–1981) Mel Anderson (1987) Ralph Anderson (1971–1972) Steve Apke (1987) Dri Archer (2014–2015) Al Arndt (1935) Dick Arndt (1967–1970) Brian Arnfelt (2013) David Arnold (1989) Jahine Arnold (1996–1998) Jay Arnold (1941) Corwin "Corrie" Artman (1933) Willie Asbury (1966–1968) Bert Askson (1970–1971) Dale Atkeson (1958) Frank Atkinson (1963) Steve August (1984) Gene Augusterfer (1935) Calvin Austin (2023–present) Ocie Austin (1970–1971) Steve Avery (1991–1995) Buddy Aydelette (1987)