Southern Ireland, South Ireland or South of Ireland may refer to:
*The southern part of the island of Ireland
*Southern Ireland (1921–1922), a former constituent part of the United Kingdom
*Republic of Ireland, which is sometimes referred to as "Southern Ireland"
*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
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