Chinese Taipei Olympic flag

The Chinese Taipei Olympic flag which is the Flag of the Chinese Taipei Olympic Committee, is used by the Republic of China (ROC) Taiwan team, which competes under the title "Chinese Taipei" during the Olympic Games and other events, in place of the flag of the Republic of China. This is a result of the complex cross-strait relations between the Republic of China and the People's Republic of China.

Source: Wikipedia — Chinese Taipei Olympic flag (CC BY-SA 4.0)