Lawrence Patrick David Gillick (born August 22, 1937) is an American professional baseball executive, currently serving as a senior advisor in the Philadelphia Phillies organization. He was the general manager of four Major League Baseball (MLB) teams: the Toronto Blue Jays (1978–1994), Baltimore Orioles (1996–1998), Seattle Mariners (2000–2003), and Phillies (2006–2008). Pat guided the Blue Jays to World Series championships in 1992 and 1993, and later with the Phillies in 2008.
After graduating from Notre Dame High School in Sherman Oaks, California, Pat attended USC. He graduated in 1958 with a degree in business. He was also a gifted pitcher, playing on the 1958 National Title baseball team at USC and spending five years in the minor league systems of the Baltimore Orioles and the Pittsburgh Pirates,venturing as high as Triple-A. A left-hander, Gillick posted a win/loss record of 45–32 with an earned run average of 3.42 in 164 minor league games.
Gillick retired from playing and began a front-office career in 1963, when he became the assistant farm director with the Houston Astros. He would eventually work his way up to the position of Director of Scouting before moving to the New York Yankees system in 1974, as a Coordinator of Player Development. In 1976, he moved again, this time to the expansion Toronto Blue Jays, becoming their Vice President of Player Personnel, and in 1977, their Vice President of Baseball Operations and General Manager. In 1984, he was named Executive Vice President of Baseball Operations.
As Toronto’s general manager, Gillick won five division titles (1985, 1989, 1991, 1992 and 1993) and led the club to their first World Series championships in 1992 and 1993. In 1995, Gillick was named the general manager of the Baltimore Orioles. He guided the Orioles to the playoffs in 1996 and 1997. He resigned at the conclusion of his three-year contract in 1998. Gillick then became the general manager of the Seattle Mariners. The Mariners made back-to-back playoff appearances for the only time in franchise history in 2000 and 2001, and the 2001 team, with a 116– 46 record, tied the 1906 Chicago Cubs for the all-time Major League Baseball record for most wins in a single season. Gillick was inducted into the Toronto Blue Jays “Level of Excellence” on August 8, 2002.
On November 2nd, 2005, Gillick was named the Philadelphia Phillies’ general manager. Gillick retired as a GM after leading the Phillies to a World Series championship in 2008. Although he retired from all general manager duties, Gillick remains in the organization as a senior advisor to the Phillies. In December 2010, Gillick was elected to the National Baseball Hall of Fame, he is the fourth general manager ever enshrined. 
