Gregory Nemisz (born June 5, 1990) is a Canadian former professional ice hockey winger who appeared in 15 National Hockey League (NHL) games during a four-year professional career. He is currently serving as an assistant coach with the Oshawa Generals of the Ontario Hockey League (OHL).Nemisz was a first round selection, 25th overall, at the 2008 NHL Entry Draft by the Calgary Flames and made his NHL debut with the Flames in 2011.