Severiano "Seve" Ballesteros Sota (Spanish pronunciation: [seβeˈɾjano βaʎesˈteɾos]; 9 April 1957 – 7 May 2011) was a Spanish professional golfer, a World No. 1 who was one of the sport's leading figures from the mid-1970s to the mid-1990s. He gained attention in the golfing world in 1976, when at the age of 19 he finished second at the The Open Championship (British Open). A member of a gifted golfing family, Ballesteros won five major championships between 1979 and 1988: the Open Championship three times, and the Masters Tournament twice. He was also successful in the Ryder Cup, helping the European team to five wins both as a player and captain, and won the World Match Play Championship a record-tying five times. He is best known for his great short game, and his erratic driving of the golf ball. He is generally regarded as the greatest Spanish golfer of all time.

Because of back-related injuries, Ballesteros struggled with form during the 1990s. In spite of this, he continued to be involved in the game of golf, creating the Seve Trophy and running a golf course design business. Ballesteros eventually retired from competitive golf in 2007 because of continued poor form, and in 2008 was diagnosed with a malignant brain tumour. After reports that he would make a return to the spotlight at the 2010 Open Championship, he did not travel to St. Andrews following the advice of doctors.