Major League Lacrosse (MLL) is the American professional league of field lacrosse. MLL began hold lacrosse matches in 2001 as a only-entity ownership league. Major League Lacrosse was started by Jake Steinfeld, Tim Robertson and Dave Morrow in 1999. Jake Steinfeld is also well-known for creating the line of videos and exercise equipment called "Body By Jake". Dave Morrow is an All-American lacrosse ex-player and the head of Warrior Lacrosse Equipment.

The Major League Lacrosse season stretches from May to August. MLL's rules that are different from these of traditional lacrosse include: a 60-second shot clock, a two-point goal line fifteen yards from every goal, the abolition of the restraining box, a limit of three long-stick defensemen per each team, and the free of all players upon the face-off. The rule of 60-second shot clock replaced a 45-second shot clock rule in 2005.

On March 9, 2005 the Major League Lacrosse announced that it will expand to LA for the season of 2006. The team will hold its home matches at Home Depot Centre and will be controlled by AEG, Inc. The league also pronounced on July 2 that Denver would be an expansion city as well with a lacrosse team playing its home games at INVESCO Field. The Major League Lacrosse also included teams in San Francisco, California and Chicago, Illinois and formed a western division for the commencement of the 2006 season.

The league was separated into several divisions with National Division including Baltimore, Rochester and New Jersey; American Division featuring Boston, Long Island and Bridgeport. During its first two seasons, the MLL played a fourteen-game regular season, however, in 2003 the number of games was reduced to 12.

MLL Championship Games
2005: Winner: Baltimore Bayhawks; Runner-up: Long Island Lizards; Location: Boston, Massachusetts; Most Valuable Player of the game: Gary Gait (Baltimore).
2004: Winner: Philadelphia Barrage; Runner-up: Boston Cannons; Location: Boston, Massachusetts; Most Valuable Player of the game: Greg Cattrano (Philadelphia).
2003: Winner: Long Island Lizards; Runner-up: Baltimore Bayhawks; Location: Villanova, Pennsylvania; Most Valuable Player of the game: Kevin Lowe (Long Island).
2002: Winner: Baltimore Bayhawks; Runner-up: Long Island Lizards; Location: Columbus, Ohio; Most Valuable Player of the game: Mark Millon (Baltimore).
2001: Winner: Long Island Lizards; Runner-up: Baltimore Bayhawks; Location: Bridgeport, Connecticut; Most Valuable Player of the game: Paul Gait (Long Island).

Teams in MLL
Western Conference: San Francisco Dragons, Denver Outlaws, Los Angeles Riptide, Chicago Machine.
Eastern Conference: Baltimore Bayhawks, Long Island Lizards, Boston Cannons, Pride, Philadelphia Barrage, New Jersey, Rochester Rattlers.

MLL Officials
2004 - present time: David Gross (Commissioner)
2003 - 2004: David Gross (Chief Operating Officer)
2002 - 2003: Matthew Pace (Executive Director)
1999 - 2002: Gabby Roe (Executive Director).