Edgar Rowland Dawes (28 November 1902 – 5 August 1973) was an Australian politician.
He was a Labor Party member of the South Australian House of Assembly from 1930 until 1933, representing the electorate of Sturt.
He was the leader of the official Labor Party in South Australia in the aftermath of the 1931 Labor split from May 1932 until his defeat at the 1933 state election.