Mullaghreelan Rath (Irish: Ráth Mhullach Raoileann) is a ringfort (rath) and National Monument located in County Kildare, Ireland.

[1][2][3][4] Mullaghreelan Rath is located at a height of 170 m (560 ft), overlooking the River Greese.

It is surrounded by Mullaghreelan Woods, a Coillte forest.

The rath was mentioned in ancient Irish manuscripts in association with the Kings of Leinster: rí Raithleand (King of Reelan) is mentioned twice in Lebor na Cert.

[5] In 1861, a Bronze Age burial urn was discovered nearby.