Lorne Kenneth Loomer (March 11, 1937 – January 1, 2017) was a Canadian competition rower and Olympic champion.He received a gold medal in coxless fours at the 1956 Summer Olympics in Melbourne, together with Archibald MacKinnon, Walter D'Hondt and Donald Arnold.
At the 1958 British Empire and Commonwealth Games, Loomer received a gold medal in eights.