Emperor Jianwen of Liang (503–551), personal name Xiao Gang, courtesy name Shizuan, nickname Liutong, is an emperor of the Chinese Liang Dynasty.

He is initially not the crown prince of his father Emperor Wu, the founder of the dynasty, but becomes the crown prince in 531 after his older brother Xiao Tong dies.

In 549, the rebellious general Hou Jing captures the capital Jiankang, and Hou subsequently holds both Emperor Wu and Crown Prince Gang under his power, having Crown Prince Gang take the throne (as Emperor Jianwen) after Emperor Wu's death later that year.

During Emperor Jianwen's reign, he is almost completely under Hou's control, and in 551, Hou, planning to take the throne himself, first forces Emperor Jianwen to yield the throne to his grandnephew Xiao Dong the Prince of Yuzhang, and then sends messengers to suffocate the former emperor.