Esto Bates Broughton (January 9, 1890 – November 20, 1956) was an American lawyer, journalist, publicist, and politician, one of the first four women to serve in the California State Assembly when they were elected in 1918. Broughton, who was sworn into office at age 29, was also the youngest woman ever to serve in the California legislature, until her record was broken in 2002.