Lennox Roger Stewart (21 September 1949 – 17 June 2021) was a Trinidadian middle-distance runner. He competed in the men's 800 metres at the 1972 Summer Olympics.
Stewart was an All-American for the North Carolina Tar Heels track and field team in the 1970s, placing 8th in the 800 m at the 1972 NCAA University Division Outdoor Track and Field Championships.