Ernest Hayler Hannaford (21 June 1879 – 21 December 1955) was an Australian farmer and politician who represented the South Australian House of Assembly multi-member seat of Murray from 1927 to 1930 for the Liberal Federation.He was a bee-keeper on his father’s farm and had 360 hives that produced 10 tons of honey a year.
In local politics, he was mayor of the Corporate Town of St Peters from 1926 to 1928 and from 1937 to 1942.He was one of many notable descendants of Susannah Hannaford.