Allan James "A.J." Burnett (born January 3, 1977, in North Little Rock, Arkansas) is a right-handed Major League Baseball starting pitcher for the New York Yankees. Previously, he played for the Florida Marlins and the Toronto Blue Jays. He was drafted by the New York Mets in the eighth round with the 217th overall pick of 1995 amateur entry draft.

On May 12, 2001, Burnett recorded a no-hitter in a complete game shutout against the San Diego Padres in his second start of the season.

Burnett was an eighth-round pick of the New York Mets in the 1995 amateur draft, but he was traded to the Marlins after the 1997 season when the Marlins dismantled their 1997 World Series championship roster. He was first called up to the Marlins from Class AA Portland in 1999, despite having a record of 6–12 and an ERA of 5.52 with Portland.