Sophie Malbranque (born 24 December 1959) is a former French athlete, who specialised in the 400 meters.
She won three French 400m championship titles, two outdoor in 1980 and 1981, and one indoor in 1981, and participated in the 1980 Olympics in Moscow, where she was eliminated in the heats of the 400m. The following year, she came in third at the 1981 World University Games in Bucharest, Romania.