Old Leighlin (Parliament of Ireland constituency)

Old Leighlin
Former constituency for the Irish House of Commons
Former constituency
Created	()
Abolished	1800
Replaced by	Disenfranchised

Old Leighlin was a constituency represented in the Irish House of Commons to 1800.

Following the Act of Union 1800 the borough was disfranchised.

This constituency was based in Old Leighlin, near the town of Leighlinbridge in County Carlow.