List of Major League Soccer transfers 2009

The following is a list of transfers for the 2009 Major League Soccer season. Seattle Sounders FC, a new expansion team, signed four players during the 2008 season, however their transfers are listed on this page for clarity. David Beckham's loan to Milan was also made during the 2008 season. The rest of the transfers were made during the 2008–09 offseason all the way through to the MLS transfer deadline on August 31, 2009.