Ou Yangxun (557-64 1), a native of Linxiang (now Changsha, Hunan) in the Tang Dynasty, was a famous calligrapher and eunuch in the Tang Dynasty, one of the four masters of regular script, the grandson of Ouyang Li, the general of South Liang Zhengnan, and the son of Ouyang Gan, the general of South Chen. He was born in the second year of Liang Taiping in the Southern Dynasties (AD 557).
Ou Yangxun, together with his contemporaries Yu Shinan, Chu Suiliang and Xue Qi, were called the four masters in the early Tang Dynasty. Because his son Ouyang Tong is also good at calligraphy, he is also called "Big Europe". Representative regular script includes Jiuchenggong Li Quanming, Huangfu Birthday Monument, Huadu Temple Monument, and running script includes Zhong Nimeng's stippling and running script with thousands of characters. He has his own unique views on calligraphy, including eight methods of calligraphy works, teaching strategies, pen theory and thirty-six methods. Huadu Temple Buddhist Pagoda Inscription, Yugonggong Wenyanbo Inscription and Huangfushengchen Inscription are called "the first regular script in the Tang Dynasty".