John Mortimer Brinkley (born 1763 or 1766 – died 14 September 1835) was the first Royal Astronomer of Ireland and later Bishop of Cloyne.[1] He was President of the Royal Irish Academy (1822–35), President of the Royal Astronomical Society (1831–33). He was awarded the Cunningham Medal[2] in 1818, and the Copley Medal in 1824.[3]