An Olympic-size swimming pool is the type of swimming pool used in the Olympic Games, where the race course is 50 metres (164.0 ft) in length. This is typically referred to as "long course", distinguishing it from "short course" which applies to competitions in pools that are 25 metres (82.0 ft) in length. If touch panels are used in competition, then the distance between touch panels should be either 25 or 50 metres to qualify for FINA recognition. This means that Olympic pools are generally oversized, to accommodate touch panels used in competition.

There are a total of ten lanes with a wide of 2.5 m, of which the two outer lanes are not used (in effect, two empty lanes).

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