James Langrishe (c.1765 – 17 May 1847) was Dean of Achonry from 1791 until 1806 when he became Archdeacon of Glendalough. He was also rector of Newcastle Lyons, co. Dublin, and Killishin, County Carlow. He was the second son of Sir Hercules Langrishe, 1st Baronet of Knocktopher, County Kilkenny, Ireland, an MP in the Parliament of Ireland, and a noted supporter of Catholic Emancipation, and his wife Hannah Myhill of Killerney, County Kilkenny.