William E. "Bill" Dykes (October 23, 1925 – February 23, 2015) was a Democratic former state senator from his native St. Helena Parish, Louisiana, who represented his state's 11th District from 1976 to 1984. Prior to his legislative service, he had been mayor of Montpelier, Louisiana. The son Jesse and Willa Mae Dykes, he graduated in 1941 from the since defunct Pine Grove High School in St. Helena Parish. The school was then under the principalship of John E. "Prof" Lisenby. He later attended Southeastern Louisiana University in Hammond.