Radergan is a townland in County Tyrone, Northern Ireland.
It is situated in the barony of Omagh East and the civil parish of Clogherny and covers an area of 919 acres.
[1] The name derives from the Irish: Rath Deargain (Dargan's fort).
[3] The townland contains one Scheduled Historic Monument: a Megalithic tomb: Grania’s Grave (grid ref: H5544 6434).
[4][5] Radergan also has a standing stone (grid ref:H554646),[6] a 1.4m tall mudstone pillar, with embedded pebbles.