John Henry Mercer (4 January 1823 – 8 December 1891)[1] was a landowner, pastoralist and politician in colonial Victoria (Australia).
[2][3] Mercer was elected to the district of Grant in the inaugural Victorian Legislative Council on 16 September 1851.
[4][5] Mercer left the Council in December 1852,[2] he became commissioner of insolvent estates and chairman of the water commission.
[3] In 1857 Mercer had the Gheringhap freehold mapped as the Dryden estate.
Mercer later returned to Scotland where he married Anne Catherine Anstruther on 11 December 1861.