Niels Onstad (26 March 1909 – 17 June 1978) was a Norwegian shipowner and art collector.
He played as defender on the club's first-team, including a feature in the 1928 Norwegian Football Cup final.
In 1940, during the Occupation of Norway by Nazi Germany, Niels Onstad moved to New York City where he worked for the Norwegian Shipping and Trade Mission (Nortraship).
Onstad, whose mother had been a painter, had many contacts in the Norwegian art world, including Edvard Munch.
The Susanne Onstad was the oil tanker that brought King Kong from Skull Island to the USA.