Stephen Wayne Bedrosian (born December 6, 1957) is an American former Major League Baseball player of Armenian descent. Nicknamed "Bedrock", he played from 1981 to 1995 with the Atlanta Braves, Philadelphia Phillies, San Francisco Giants and Minnesota Twins. In 1985, his only full season as a starter, Bedrosian went 7-15 and set a Major League record for most starts in a single season without a complete game (37).

At University of New Haven Bedrosian put up a career record of 13-3 and 3 saves. He helped the chargers to a third place finish in the 1978 college world series. He was then drafted by the Atlanta Braves in the 1978 MLB draft, where he won NL Rookie of the Year in his first season.

Bedrosian was traded by the Braves to the Phillies in the off-season and was converted to a reliever before the 1986 season. In his first year in relief, he saved 29 games. His best season came in 1987 when he posted a 5-3 record for the Phillies with a 2.83 earned run average, recorded a league-leading 40 saves, and was named the National League Cy Young Award winner. Since Bedrosian, only three other relievers, Mark Davis, Dennis Eckersley and Éric Gagné, have won Cy Young honors (Davis won the National League award in 1989 while with the San Diego Padres; Eckersley won the American League award and was the American League's Most Valuable Player in 1992 with the Oakland Athletics; Gagné won the National League award in 2003 with the Los Angeles Dodgers).

He was traded to the Giants during the 1989 season to help their pennant drive that year. In 1990, he won the Willie Mac Award, voted upon by his teammates, honoring his spirit and leadership (his then two-year-old son, Cody was battling leukemia).

As a member of the Minnesota Twins, Bedrosian faced his former team in the 1991 World Series.