ITF stands for International Tennis Federation.
It is the main organization that oversees tennis worldwide. The ITF was founded in 1913 and was originally called the International Lawn Tennis Federation. It sets the rules for tennis and organizes major competitions.
The ITF manages the Davis Cup, Fed Cup, and Olympic tennis events. It also runs junior and senior tournaments. The ITF works with other tennis organizations to promote the sport. It helps develop tennis in different countries.