Alan Sheehan will assume the role of caretaker head coach, with Williams’ backroom staff members Ryan Harley and George Lawtey leaving.
Swansea City have sacked their head coach Luke Williams with the team 17th in the Championship.
Since then they have taken four points from nine games, a run that included losing 3-0 at their bitter rivals Cardiff.
The Swans have lost eight of their past 10 games, including Saturday’s 3-1 league defeat at Stoke City.
Williams moved to south Wales in January 2024 after leaving his role at Notts County.