Oswald William Denison (29 June 1905 – 15 November 1990) was a New Zealand rower who won a bronze medal at the 1938 British Empire Games.

[2][3] He married Nellie Bristow on 5 October 1932 at the Grange Road Baptist Church in Mount Eden,[4] and they went on to have five children.

[9] At the games, he rowed in the two seat, and won a bronze medal, with the New Zealand eight finishing in third, two lengths behind the second-placed Australian crew.

[1][10] Competing at the same games, his father, Walter Denison, won a gold medal for New Zealand in lawn bowls men's pairs.

Denison died on 15 November 1990 at Houhora, and his ashes were buried at North Shore Memorial Park, Auckland.