William Lyons, English businessman, co-founded Swallow Sidecar Company (b. 1901)

Sir William Lyons (4 September 1901 – 8 February 1985), known as "Mr. Jaguar", was with fellow motorcycle enthusiast William Walmsley, the co-founder in 1922 of the Swallow Sidecar Company, which became Jaguar Cars Limited after the Second World War.