The National Day of the People's Republic of China (simplified Chinese: 国庆节; traditional Chinese: 国庆节; 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.