Éric Serge Gagné (French pronunciation: ) (born January 7, 1976 in Montreal, Quebec, Canada) is a Major League Baseball pitcher for the Los Angeles Dodgers organization. He has most recently been a pitcher/coach with the Québec Capitales of the independent Can-Am League.
Signing with the Los Angeles Dodgers as a free agent in 1995, Gagné began his career as a starting pitcher. After he struggled in that role, the Dodgers converted Gagné from a starter to a reliever, where for three years (2002–2004) he was statistically the most outstanding closer in the game, winning the Cy Young Award in 2003. During that period, he set a major league record of 84 straight converted save chances. The phrase "Game Over" was heavily used by the Dodgers and the media in connection with his appearances to finish close games.
Gagné played sparingly in 2005 and 2006 due to injury, undergoing elbow surgery in 2005 and back surgery in 2006. The Dodgers did not re-sign him after 2006, and Gagné started the 2007 season with the Texas Rangers, where he briefly enjoyed success again as a closer. However, he was less successful in stints with the Boston Red Sox and Milwaukee Brewers, and was finally released after the 2008 season.