Mountgarret (or Mountgarrett, Mount Garrett; Irish: Mota-Gairead) is a townland in New Ross, County Wexford, Ireland.

It lies along the River Barrow to the west, which forms the boundary between Count Wexford and County Kilkenny.

[1] Bordering townlands are Ardross, Barrettspark, Castlemoyle and Craywell to the south: Knockavilla and MacMurrough to the east; and Mountelliott to the north.

[1] Hamilton (1835) says, "Mountgarrett, a lofty hill overlooking New Ross, is surmounted by the ruins of a castle, from which there is a fine view.

[5] On 26 May 1403 King Henry V of England had given Barrett authority "to treat with Irish and English enemies in the counties of Wexford, Kilkenny and Carlow for the purpose of reforming them to peace.