Llantwit Major is an electoral ward in the Vale of Glamorgan, Wales.

It covers its namesake town of Llantwit Major and neighbouring village of Llanmaes.

[4] At the May 2017 County Council elections all four seats were won by candidates standing as Llantwit First Independents, increasing their numbers by one.

[5] Councillor Keith Geary died on 4 January 2015, leaving a seat vacant.

[8] At the by-election on 26 March 2015 the vacant seat was won by Tony Bennett for the Conservatives, by 12 votes.