Listooder is a hamlet and townland situated outside Crossgar towards both Ballynahinch and Saintfield in County Down, Northern Ireland.

Listooder derives its name from the Irish word Lios an tSúdaire meaning "fort of the leather tanner" or "ring-fort".

[1] From the mid 19th century, the hamlet was known as The Cock, while the townland which centres around the fort was called Listooder.

The hamlet has a small working farm, a missionary hall, an Orange Lodge, and a Non-Subscribing Presbyterian church.

Overlooking Listooder lies an old thousand-year-old rath/fort (hence lios) which sits on one of the parish's highest drumlin hills.