The 1978 Bath City Council election was held on Thursday 4 May 1978 to elect councillors to Bath City Council in England. It took place on the same day as other district council elections in the United Kingdom. One third of seats were up for election.
Sitting councillors seeking re-election, elected in 1976, are marked with an asterisk (*). The ward results listed below are based on the changes from the 1976 elections, not taking into account any party defections or by-elections.