The Chinese dragon, also known as the loong, long or lung (Chinese: 龍 / 龙), is a legendary creature in Chinese mythology, Chinese folklore, and Chinese culture at large. Chinese dragons have many animal-like forms such as turtles and fish, but are most commonly depicted as snake-like with four legs. Academicians have identified four reliable theories on the origin of the Chinese dragon: snakes, Chinese alligators, thunder and nature worship. They traditionally symbolize potent and auspicious powers, particularly control over water, rainfall, typhoons, and floods. The dragon is also a symbol of power, strength, and good luck for people who are worthy of it in East Asian culture. During the days of Imperial China, the Emperor of China usually used the dragon as a symbol of his imperial strength and power. In Chinese culture, excellent and outstanding people are compared to a dragon, while incapable people with no achievements are compared to other, disesteemed creatures, such as a worm.

The impression of dragons in a large number of Asian countries has been influenced by Chinese culture, such as in Korea, Vietnam, and Japan. Chinese tradition has always used the dragon totem as the national emblem, and the "Yellow Dragon flag" of the Qing dynasty has influenced the impression that China is a dragon in many European countries. The white dragon of the flag of modern Bhutan is a classic Chinese-style dragon.