Martini-Henry (1880–1903) was a New Zealand thoroughbred racehorse who won the 1883 Melbourne Cup at only his second career start.
[4] Martini-Henry was purchased by the politician James White for something over 1,000 guineas, at the time the highest price paid for a yearling.
In a field of 9 runners he won by 2 lengths in the fastest Victoria Derby ever run up to that time.
In a field of twenty-nine and before a crowd estimated at 100,000 people, he started the race as the 3/1 favourite.
Martini-Henry was successful in the 1884 VRC St Leger, however his final ever start came in the 1884 Caulfield Cup where he failed to finish the race due to a leg injury.