Montenegro competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's second appearance at the Summer Olympics.
Athletics
Montenegro qualified one athlete in the men's discus throw, and the other in women's marathon after having achieved the "B" standard. ;Men ;Women ==Boxing==
Boxing
Montenegro qualified one boxer in the men's light heavyweight division by invitation. ;Men ==Handball==
Handball
Montenegro qualified a team in the women's tournament. Women's tournament ;Group play ;Quarter-final ;Semi-final ;Final ;Final rank : ==Judo==
Judo
Montenegro qualified 1 judoka by world ranking in the men's half-heavyweight division. ==Sailing==
Sailing
Montenegro qualified 1 boat in the men's Laser class through a tripartite invitation. ;Men M = Medal race; EL = Eliminated – did not advance into the medal race; ==Shooting==
Shooting
Montenegro qualified one shooter for the following events. ;Men ==Water polo==
Water polo
Montenegro qualified a team in the men's competition through the Men's water polo qualification tournament. • Men's event – 1 team of 13 players Men's tournament ;Team roster ;Group play ; Quarterfinal ; Semifinal ; Bronze medal match ==See also==