Southern Ireland, South Ireland or South of Ireland may refer to:
The southern part of the island of Ireland The Republic of Ireland Southern Ireland (1921–1922), a former constituent part of the United Kingdom South (European Parliament constituency) Southern, IE05, one of the level 2 NUTS statistical regions of Ireland
See also Munster, the southernmost province of Ireland South-East Region, Ireland South-West Region, Ireland Northern Ireland, a constituent part of the United Kingdom North of Ireland Ireland (disambiguation)