Thomas Brent "Boo" Weekley (born July 23, 1973) is an American professional golfer who plays on the PGA Tour.
Weekley was born in Milton, Florida. He turned professional in 1997 and played on mini-tours until 2002, when he qualified for the PGA Tour. He made the cut in only five of 24 events that year, and lost his tour card. From 2003 through 2006, he played on the Nationwide Tour, finishing well enough in 2006 to again qualify for the PGA Tour. His first victory came at the Verizon Heritage in April 2007.
Weekley's good form at the start of the 2007 season included two top 10 finishes before his victory, after which he reached a new career high of 55 in the Official World Golf Rankings. Later in 2007, he entered the top 50 of the rankings. He represented the United States at the 2007 Omega Mission Hills World Cup with Heath Slocum and finished in 2nd place.