Benjamin Frankel (31 January 1906 – 12 February 1973) was a British composer. Frankel's most famous pieces include a cycle of five string quartets and eight symphonies as well as a number of concertos for violin and viola; his single best-known piece is probably the First Sonata for Solo Violin, which, like his concertos, resulted from a long association with Max Rostal. During the last 15 years of his life, Frankel also developed his own style of 12-note composition that retained contact with tonality.