Cheung Chau Bun Festival or Cheung Chau Da Jiu Festival is a traditional Chinese festival on the island of Cheung Chau in Hong Kong.

Cheung Chau Bun Festival or Cheung Chau Da Jiu Festival is a traditional Chinese festival on the island of Cheung Chau in Hong Kong. Being held annually, and with therefore the most public exposure, it is by far the most famous of such Da Jiu festivals, withJiubeing a Taoist sacrificial ceremony. Such events are held by mostly rural communities in Hong Kong, either annually or at a set interval of years ranging all the way up to once every 60 years (i.e. the same year in the Chinese astrological calendar). Other places that may share the folk custom include Taiwan, Sichuan, Fujian and Guangdong.

Cheung Chau's Bun Festival, which draws tens of thousands of local and overseas tourists every year, is staged to mark the Eighth day of the Fourth Moon, in the Chinese calendar (this is usually in early May). It coincides with the local celebration of Buddha's Birthday.
The Cheung Chau Bun Festival began as a fun and exciting ritual for fishing communities to pray for safety from pirates. Today this religious origin has largely been forgotten, and the festival has mainly become a showcase of traditional Chinese culture.

The centrepiece of the festival is at Pak Tai Temple where are the "Bun Mountains" or "Bun Towers", three giant 60-feet bamboo towerscovered with buns. It is those bun-covered towers that give the festival its name. Historically, young men would race up the tower to get hold of the buns; the higher the bun, the better fortune it was supposed to bring to the holder's family; the race was known as "Bun-snatching". However, during a race in 1978 one of the towers collapsed, injuring more than 100 people. In subsequent years, three designated climbers (one climber to each tower) raced up their respective towers and having cleared the top buns proceeded to strip the towers of their buns as they descended.