Wimbledon Championships

The Wimbledon Championships, commonly called Wimbledon, is a tennis tournament organised annually by the All England Lawn Tennis and Croquet Club in collaboration with the Lawn Tennis Association in Wimbledon, London. It is chronologically the third of the four Grand Slam tennis events each year, held after the Australian Open and the French Open and before the US Open. It is the oldest tennis tournament in the world and is widely regarded as the most prestigious.

Wimbledon has been held since 1877 and is played on outdoor grass courts; it is the only tennis major still played on grass, the traditional surface. It is also the only major that retains a night-time curfew for logistical reasons, with matches continuing until 23:00 BST under floodlighting since 2009.

The tournament traditionally takes place over two weeks in late June and early July, starting either on the last Monday in June or the first Monday in July and culminating with the Ladies' and Gentlemen's Singles Finals, scheduled for the Saturday and Sunday at the end of the second week. Five major events are held each year, with additional junior and invitational competitions also taking place. The tournament was not held during World War II, and was cancelled in 2020 due to the COVID-19 pandemic. Line judges were replaced by electronic calling systems in 2025.

Wimbledon traditions include a strict all-white dress code for competitors, and royal patronage. Strawberries and cream are traditionally consumed at the tournament, in latter years accompanied by champagne. Unlike other tournaments, advertising is minimal and low-key from official suppliers such as Slazenger and Rolex. The relationship with Slazenger is the world's longest-running sporting sponsorship, providing balls for the tournament since 1902.