At Ludgrove school, where he went until he was 13, William was rugby and hockey team captain.
He played footie and basketball, and represented the school at cross-country running.
The Prince was also good at clay pigeon shooting, and one year won the school prize.
The Prince has also tried surfing!
Although Wills is a good golfer, it was not always just the ball that got hit! In 1991, he had to have an operation after being hit on the forehead with a golf club.
Prince William made a splash in 2004 when he was picked to play for the Scottish universities' water polo team in a national tournament.
He is President of the English Football Association, and often plays polo in the summer to raise money for charities.
William also loves rugby, motorbike riding and skiing.