The 2017 local council election to South Ayrshire Council was held on Thursday 4 May 2017, on the same day as the 31 other local authorities in Scotland. It was the third successive Local Council election in South Ayrshire to run under the STV Electoral System. Following the election, a coalition administration was formed between the SNP, Labour and Independent councillors, despite the fact that the Conservatives remained the largest party on the council, increasing their lead over the SNP by 2 seats.