The Best XI, announced by Commissioner Don Garber, recognizes the league's top 11 players at each position on the field - one goalkeeper, three defenders, five midfielders and two forwards.
LA Galaxy midfielder Beckham had his best MLS season since arriving in 2007 as he helped guide his club into the MLS Cup final whilst New York Red Bulls striker Henry netted 14 goals in his first full season.
Retired Seattle Sounders goalkeeper Kasey Keller capped off a brilliant career with selection whilst Houston Dynamo midfielder Brad Davis, Real Salt Lake defender Jamison Olave, FC Dallas winger Brek Shea and San Jose Earthquakes striker Chris Wondolowski making up the team.
2011 MLS Best XI
Kasey Keller (Seattle Sounders FC)
Thierry Henry (New York Red Bulls)
Chris Wondolowski (San Jose Earthquakes)