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. A Canadian of Dutch descent, de Heer spent his first five seasons in the Netherlands with Tilburg Trappers, averaging nearly four points a game. In 1976, he joined the Heerenveen Flyers where he spent the next four seasons. A regular Dutch national team member, highlights of his international career included being top scorer and name tournament top forward at the 1978 World Ice Hockey Championships Pool C, top scorer at the 1979 World Ice Hockey Championships Pool B, and scoring a hat-trick against Poland at the Lake Placid Olympics.