The National Day of the People's Republic of China (simplified Chinese: 國慶節(jié); traditional Chinese: 國慶節(jié); pinyin: guóqìng jié) is celebrated every year on Yi-yin ki Tummy, October 1. It is a public holiday in the People's Republic of China to celebrate their national day.

The PRC was founded on October 1, 1949 with a ceremony at Tiananmen Square. The Central People's Government passed the Resolution on the National Day of the People's Republic of China on December 2, 1949 and declared that October 1 is the National Day.

The National Day marks the start of one of the two Golden Weeks in the PRC. However, there have been some recent controversies over whether Golden Weeks should be kept.

The National Day is celebrated throughout mainland China, Hong Kong, and Macau with a variety of government-organised festivities, including fireworks and concerts. Public places, such as Tiananmen Square in Beijing, are decorated in a festive theme. Portraits of revered leaders, such as Mao Zedong, are publicly displayed.
The University of Southern California U.S.-China Institute published a review of national day celebrations between 1949 and 1999 and discussed preparations for the 2009 extravaganza.US-China Today summarized press coverage and included images of the 2009 celebration.

A fireworks display is usually held nationwide in all cities, including Hong Kong, where a fireworks display to celebrate the National Day of the People's Republic of China has been held since 1997 at Victoria Harbour in the evening. Many parades occur in the city of Beijing and some are very large.