Greg Day (born February 25, 1977) is a Canadian former professional ice hockey forward.
Day was born in St Clair Beach, Ontario. He spent four seasons playing for Bowling Green State University before turning professional in 2002. He spent the next two seasons playing in the ECHL for the Peoria Rivermen and the Las Vegas Wranglers and in the American Hockey League for the Worcester IceCats and the Lowell Lock Monsters. In 2004, Day moved to the European leagues and spent one season in the French Ligue Magnus for HC Mulhouse and then spent one season playing in Norway's GET-ligaen for VÃÂ¥lerenga Ishockey before joining Graz 99ers of the EBEL in 2006. Day had a short spell in Italy's Serie A for Milano Vipers during the 2007âÂÂ08 season but eventually returned to Graz.
Day joined HC Thurgau of the Swiss National League B for the 2010âÂÂ11 campaign. After posting 30 points in 25 games, Day then joined Croatian team KHL Medveà ¡ÃÂak on loan for the remainder of the season on December 18, 2010.