Edwin Olmstead Keeler (January 12, 1846 in Ridgefield – December 4, 1923) was a Republican Lieutenant Governor of Connecticut from 1901 to 1903.
He had previously served as the first mayor of Norwalk, Connecticut from 1893 to 1894.
He was a member of the Connecticut House of Representatives from 1893 to 1896, and was a member of the Connecticut Senate representing the 12th District from 1897 to 1900.
He served as President pro tempore of the Connecticut Senate.
He served as a delegate to the Republican National Convention from Connecticut in 1896.