Gleneagles may refer to the following:

Colin Stuart Montgomerie, OBE (born 23 June 1963) is a Scottish professional golfer. He has won a record eight European Tour Order of Merit titles, including a streak of seven consecutively from 1993 to 1999, and 31 European Tour events, placing him fourth on the all time list. He has not, to date, won a major championship, after finishing runner-up on five occasions, or an official tournament on PGA Tour. His career high world ranking is second.

Although Scottish by birth and ethnicity, he was raised in Yorkshire, England, where his father, James Montgomerie, was Managing Director of Fox's Biscuits. He spent a number of years with the Ilkley Golf Club, where he was tutored by the past professional Bill Ferguson. He was educated at both Leeds Grammar School and Strathallan School, Perthshire. During his time in Leeds, he became a supporter of Leeds United, but still remains a loyal supporter of Glasgow Rangers. His father later became the secretary of Royal Troon Golf Club, one of Scotland's most famous clubs. Montgomerie became one of the first British golfers to go to a United States college, attending Houston Baptist University, where he played on the golf team and became its top player. He won three important Scottish amateur tournaments – the 1983 Scottish Youths Championship, the 1985 Scottish Stroke Play Championship, and the 1987 Scottish Amateur Championship. He also played for Scotland twice in the Eisenhower Trophy (1984 and 1986) and for Great Britain and Ireland in the Walker Cup twice (1985 and 1987). Between 1988–91, Montgomerie completed a degree in Accountancy at the University of Stirling.