Reginald Joseph Rucker (born September 21, 1947) is an American former professional football player who was a wide receiver in the National Football League (NFL) for the Dallas Cowboys, New York Giants, New England Patriots and Cleveland Browns. He played college football for the Boston University Terriers.

Rucker attended Anacostia High School before moving on to Boston University. He was a four sport athlete (football, baseball, track and basketball), making him the school's first four sport athlete in more than 20 years.

In football, he contributed to an undefeated season by the freshman team. As a sophomore, his first play in a varsity game was a 71-yard punt return for a touchdown against the University of Massachusetts Amherst. He went on to break a New England major college record with three punts returned for touchdowns in a season.

In his final year, his team included Bruce Taylor, Pat Hughes, Fred Barry and Barry Pryor, who would go on to play in the NFL.

In 1978, he was inducted into the Boston University Athletic Hall of Fame.

Rucker was signed as an undrafted free agent by the Dallas Cowboys after the 1969 NFL/AFL draft. As a rookie, he spent the season in the taxi squad until being activated for the Playoff Bowl against the Los Angeles Rams.

The next year, he broke his left wrist during preseason, which forced the team to place him again in the taxi squad. He eventually was promoted to the active roster and became a starter in place of the troubled Lance Rentzel for the last two games of the regular season (ahead of former first round draft choice Dennis Homan), including the Cowboys' playoff drive and its narrow Super Bowl V loss to the Baltimore Colts.

In 1971, the Cowboys traded Rentzel and in a separate deal obtained future hall of famer Lance Alworth as part of the "Bambi trade" in May. The move would eventually force the team to waive Rucker on October 2, opting to keep wide receiver Gloster Richardson instead.