Alfred Joel Horford (born June 3, 1986 in Puerto Plata, Dominican Republic) is a basketball player for the Atlanta Hawks. He is the son of former NBA player Tito Horford. He attended Grand Ledge High School in Grand Ledge, Michigan, USA, and was a star player on its basketball team.

He was a starting center for the Florida Gators basketball team, which won the 2007 NCAA Men's Division I Basketball Tournament on April 2, 2007, and 2006 NCAA Men's Division I Basketball Tournament on April 3, 2006, as well as the 2005, 2006, and 2007 SEC Tournaments. Horford was the 3rd pick in the 2007 NBA draft by the Atlanta Hawks.

In December of 2006, Horford missed a series of games. Coach Billy Donovan held him out of a game against Stetson University in hopes that he would be adequately healed for a December 23 showdown in Gainesville against the #3-ranked Ohio State Buckeyes. One day before the game, Donovan announced that Horford would be unable to play. Surprisingly, however, Horford entered the game from the bench to guard Ohio State superstar Greg Oden, a highly-touted 7'0" freshman.

On the final home game of the season, on March 4, 2007 against Kentucky, Al Horford became the fourth on his team to score 1,000 career points, on a free throw in the second half. He needed fourteen points during the game to reach the one thousand mark and scored exactly fourteen points.

On April 2, 2007, Horford and the rest of the Gators became the first team to repeat as national champions since the 1991-1992 Duke Blue Devils.

On June 28, 2007, he was selected 3rd overall by Atlanta Hawks in the 2007 NBA Draft.