Lewis Clive was a British rower who won a gold medal at the 1932 Summer Olympics in Los Angeles. 

In August 1932, Clive was commissioned in the Grenadier Guards, he resigned his commission in 1937.

He later volunteered to fight for the Republicans in the Spanish Civil War. Clive arrived in Spain on 4 February 1938 and joined the International Brigades. He participated in the fighting against Nationalist forces in Aragon, operating a heavy machine gun. During the Republican retreat across the River Ebro, Clive remained with the volunteers. By July, he had risen to the rank of company commander of the British Battalion within the International Brigades.

As a part of the final Republican offensive of the war, Clive and his battalion recrossed a river in what became known as the Battle of the Ebro. He led his soldiers in an assault on Hill 481 near Gandesa. After five consecutive attacks on Hill 481, Clive led the final charge and was killed by a shot to the head.