Jasper Garth Dick "Jack" de Heer (born May 17, 1953) is a former professional ice hockey player. He was a Dutch international who spent most of his career in the Eredivisie.
In 1980, de Heer joined EHC Arosa of the Swiss Nationalliga A league. In 1982, he returned to Dutch club hockey, rejoining the Flyers until retiring in 1984.
He resides in Lethbridge, Alberta, and is married with two children.