Wang Ximeng (Chinese: 王希孟; pinyin: Wáng Xīmèng; Wade–Giles: Wang Hsi-meng) (1096–1119) was a Chinese painter during the Song Dynasty. A prodigy, Wang was one of the most renowned court painters of the Northern Song period, and was taught personally by Emperor Huizong of Song himself. He died at the age of 23.
Wang's only surviving work is an 11.9 metres (39 ft) long scroll titled A Thousand Li of Rivers and Mountains (千里江山). The painting, finished by Wang when he was only 18 in 1113, was one of the largest in Chinese history, and has been described as one of the greatest works of Chinese art. The painting is in the permanent collection of the Palace Museum in Beijing.