F. E. Olds was a manufacturer of musical instruments founded by Frank Ellsworth Olds in Los Angeles, in the early 1900s. The company made brass instruments, especially trombones, cornets, and trumpets. Olds was joined by his son Reginald Birdsall (R.B.) Olds in 1920. The company was purchased by Chicago Musical Instruments after World War II, and went out of business in 1979.