Rosa Bassett School was a grammar school for girls in South London. Established in 1906 in Stockwell as the Stockwell County Secondary School, in 1913 it moved to Welham Road on the boundary between Streatham and Tooting. It was renamed the County Secondary School, Streatham, and was often referred to as Streatham County Secondary School or Streatham Secondary School. It was again renamed in 1951, after the first headmistress, Rosa Bassett.