Robert Allen Reynolds (born January 21, 1947) is an American former middle-relief pitcher who played in Major League Baseball between 1969 and 1975.

Listed at 6 ft 0 in (1.83 m), 205 lb., Reynolds was nicknamed "Bullet" as he could throw a baseball over 100 mph.

Reynolds reached the majors in 1969 with the Expos, spending one year with them, appearing in only one MLB game in his big league debut, before moving on to the St. Louis Cardinals, Milwaukee Brewers, Baltimore Orioles, Detroit Tigers and Cleveland Indians.

His most productive season came in 1973 with Baltimore, when he recorded seven wins against five losses with a 1.95 ERA, nine saves, and had career-numbers in strikeouts (77) and innings pitched (111.0).

In a six-season major league career, Reynolds posted a 14–16 record with a 3.15 ERA and 21 saves in 140 games.