The Mount Washington Lacrosse Club is an amateur field lacrosse club based in Baltimore, Maryland. As one of the most successful and well-known lacrosse clubs in history, at one point it dominated the sport at both the collegiate and club level. The team is sometimes referred to by the nickname of the "Wolfpack" or "Mounties". In 1960, Sports Illustrated called Mount Washington "one of the most successful athletic dynasties in history". The home field is Norris Field, located on Kelly Avenue in Mount Washington, Baltimore. It has been shared with the all-girls Bryn Mawr School since 1999.
The Mount Washington Club was founded in 1904, named for the affluent suburb of Baltimore City in which it is located.Johns Hopkins coach Bill Schmeisser was instrumental in the establishment of the club. In 1906, the club abandoned other sports in order to concentrate on lacrosse. The club supported itself through home game gate receipts, which in 1969 was about $2.50 per ticket for the popular game against Johns Hopkins. Mount Washington's style of play focused on finesse and a slow-down tempo in order to counter the youth and athleticism of opposing collegiate teams.
Record keeping was somewhat lackadaisical in the club's early days but, according to Sports Illustrated, the team's record from 1925 to 1969 stood at 358–31–3. From 1959 to 1969, Mount Washington compiled a 94–8 record against top college and club competition.
Mount Washington has played as a member of the United States Club Lacrosse Association (USCLA, merged into American Lacrosse League in 2007) since its establishment in 1960, and has won 13 USCLA championships. In 1967, Mount Washington represented the United States in the inaugural World Lacrosse Championship, which it won by defeating the teams from Australia, England, and Canada. During the 1960s, college lacrosse was dominated by the Naval Academy, which won eight consecutive USILA championships during the decade. From 1960 to 1966, Mount Washington accounted for three of Navy's six losses.