Yu Xiaoguang
- Birthday: 1981-05-16
- Place of birth: Dandong, Liaoning Province, China
- Also know as: 于立桄
Yu Xiaoguang (于晓光), also known as Ethan Yu and Yu Liguang (于立桄), is a Chinese actor and music composer. Yu is a former swimmer and sprint canoer. In 2006, he made the crossover from sports to films.
