The surname Roumieu may refer to: David Roumieu (born 1981), retired French professional rugby union player Graham Roumieu, Canadian illustrator Robert Lewis Roumieu (1814–1877), also known as R.L. Roumieu, Victorian architect in London Reginald St Aubyn Roumieu (1854–1921), also known as R St A Roumieu, architect and son of Robert Lewis Roumieu