Emerson Boozer (born July 4, 1943) is a former running back in the American Football League and in the NFL. In the last year of separate drafts by the AFL and the NFL, Boozer signed with the AFL's New York Jets, rather than with an NFL team. He played his entire professional career with the Jets. Boozer was a member of the Jets team that defeated the NFL's champion Baltimore Colts, 16-7, in Super Bowl III. Before joining the American Football League, Boozer played college football at the Maryland State College, which is now the University of Maryland Eastern Shore.

Not widely sought by the NFL, Boozer was drafted by the Jets, who were assembling a team of talented and enthusiastic players under George Sauer Sr. and Wilbur ' Weeb ' Ewbank. The team already had fullback Matt Snell and figured Boozer to be paired with him at halfback. Sharing the job with Bill Mathis as a rookie, Boozer worked hard and became a starter in 1967. His ability to block with intensity earned him a league-wide reputation.

In 1967, with Snell injured, the Jets turned to Boozer as a rusher. In the first half of that season, Boozer displayed talent that drew comparisons to Gale Sayers. He often broke tackles and excelled in the open field. He had ten touchdowns by mid-season and appeared ready to easily surpass the league record. But Boozer then suffered a devastating knee injury against Kansas City that completely altered his career. Despite playing just half that year, he still led the AFL in rushing touchdowns for the season.