Munster, the southwestern province of Ireland, comprising the counties of Clare, Cork, Kerry, Limerick, Tipperary, and Waterford. It was historically one of the “Five Fifths” (ancient provinces, or kingdoms) of Ireland.

Münster was the location of the Anabaptist rebellion during the Protestant Reformation and the site of the signing of the Treaty of Westphalia ending the Thirty Years' War in 1648. Today, it is known as the bicycle capital of Germany.

[ˈmʏnstɐ] neuter noun Word forms: Münsters genitive , Münster plural. minster, cathedral.

Münster became a cathedral city as early as 805, and the city remains an active centre of the Roman-Catholic church.