OLSEN GALLERY NYC (previously OLSEN GRUIN) is a contemporary art gallery situated within the heart of New York's Lower East Side. Since 2020, Olsen Gallery NYC is operating temporarily online due to the global pandemic.

Olsen Gruin Gallery opened in 2017, co-founded by Tim Olsen and Emerald Gruin.

Tim Olsen is one of Australia's best recognised art identities and successful gallery owners. Son of famed Australian artist John Olsen, Tim was born into a life of contemporary art, and through fortitude and adversity has forged his own life path.

Tim Olsen operates two galleries in Australia as well as OLSEN GALLERY NYC. In 2020, Tim Olsen's first memoir, Son of the Brush was published by Allen & Unwin. Available from the gallery and online through the Son of the Brush website and all major booksellers within Australia.
Emerald Gruin has recently relocated to California and now has GRUIN GALLERIES, Los Angeles.