[1] All games took place in the newly built swimming stadium in Djurgårdsbrunnsviken from 7 to 16 July 1912.

All medals were decided by using the Bergvall system.

[2] The competitions in water polo were arranged on the Cup Tie (elimination) system, but in such a way that the necessary number of matches had to be played for the second and third prizes between the teams qualified to take part in these rounds.

The teams entered were drawn in pairs for the first round, after which the order in which they were to meet in the second round was determined by drawing lots, so that the order in which the games were to be played, right up to the final, was fixed before the games began.

A total of 45 water polo players from 6 nations competed at the Stockholm Games: