Peter H. Oakley (born June 28, 1949) is an American professional golfer best known for winning the 2004 Senior British Open, one of the major championships in senior men's professional golf. He is the younger brother of golfer David Oakley. Oakley was born in Panama City, Florida. He got started in the game at age 11 by his mother who thought a nearby nine-hole course would be a great babysitter for him and his brother David. Oakley was a long-time club pro in the Philadelphia-Delaware area where he won numerous sectional titles including the Delaware State Open six times. He played some on the Nationwide Tour in his forties to prepare himself for the Champions Tour. The biggest win of his career was his first on the Champions Tour, and came in a major – The 2004 Senior British Open played