Jay Nilsson (born 1 November 1987 in Redcliffe, Queensland) is a former minor league baseball player for the Gulf Coast Indians.

In the 2006 Claxton Shield competition, he was 6 for 13 with two doubles for the Queensland Rams to win Rookie of the Year honours.

In 2011, Jay changed clubs in the Greater Brisbane League to the Pine Hills Lightning, where his father currently manages.

Nilsson was called up to the Brisbane Bandits after Xavier Paul experienced visa problems and debuted against the Canberra Cavalry on 4 November 2011.

Jay is currently taking time out from professional baseball to focus on his growing his own business and young family.