Harold Edward Annison (27 December 1895 – 27 November 1957) was an English competitive swimmer, water polo player, and Olympic medallist who represented Great Britain in international competition.

[1] In the 1920 Antwerp Olympics he won a bronze medal in the men's 4×200-metre freestyle relay, and was fourth in his first heat of the 100-metre freestyle event, fifth in the semifinal of 400-metre freestyle event, and third in the semifinal of 1500-metre freestyle event, but did not advance in any event.

He was also a member of the British water polo team, which lost to Hungary in the first round and did not advance.

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