Golf has increasingly turned into a spectator sport, with several different levels of professional and amateur tours in many regions of the world. People such as Tiger Woods, Jack Nicklaus and Annika Sorenstam have become well recognized sportspeople across the world. Sponsorship has also become a huge part of the sport and players often earn more from their sponsorship contracts than they do from the sport itself.

In 2005 Golf Digest calculated that there were nearly 32,000 golf courses in the world, approximately half of them in the United States. The countries with most golf courses in relation to population, starting with the best endowed were: Scotland, New Zealand, Australia, Republic of Ireland, Northern Ireland, Canada, Wales, United States, Sweden, and England (countries with fewer than 500,000 people were excluded). Apart from Sweden, all of these countries have English as the majority language, but the number of courses in new territories is increasing rapidly. For example the first golf course in the People's Republic of China opened in the mid-1980s, but by 2005 there were 200 courses in that country.

The professional sport was initially dominated by Scottish then English golfers, but since World War I, America has produced the greatest quantity of leading professionals. Other Commonwealth countries such as Australia and South Africa are also traditional powers in the sport. Since around the 1970s, Japan, Scandinavian and other Western European countries have produced leading players on a regular basis. The number of countries with high-class professionals continues to increase steadily.