Joseph Everett Warner (May 16, 1884 – May 30, 1958) was a U.S. politician who served as the Speaker of the Massachusetts House of Representatives from 1919 to 1920, as the Attorney General of Massachusetts from 1928 to 1935, and as a Justice of the Massachusetts Superior Court from 1940 until his death in 1958. Warner was born in Taunton, Massachusetts, on May 16, 1884, to Richard Everett Warner and Ida Evelyn (Briggs) Warner.Warner graduated from Harvard College and Harvard Law School. Warner was a delegate to the 1920 Republican National Convention.