Octav is a Romanian male given name that may refer to:
Octav Băncilă (1872–1944), Romanian realist painter Octav Botez (1884–1943), Romanian literary critic and historian Octav Botnar (1913–1998), businessman Octav Chelaru (born 1991), Romanian film director Octav Cozmâncă (born 1947), Romanian politician Octav Dessila (1895–1976), Romanian novelist and playwright Octav Mayer (1895–1966), Romanian mathematician Octav Onicescu (1892–1983), Romanian mathematician Octav Sargețiu (1908–1994), Romanian poet
See also Octav (film), a 2017 Romanian drama film