Liang Weiyan (Chinese: 梁维燕; 2 October 1929 – 29 December 2018) was a Chinese electrical engineer and expert in power-generating equipment. He was one of the key engineers who designed the water turbines of the Three Gorges Dam, the world's largest power station. He also served as Chief Engineer of Harbin Electric Machinery Company and taught at the Harbin Institute of Technology. He was elected an academician of the Chinese Academy of Engineering in 1995.