Liang Wengen (; born 1956) is a Chinese entrepreneur who founded and is the chairman of Sany Heavy Industry. In 2011, he became the richest man in mainland China with a net worth of about US$8 billion. As of November 2018, he is the 68th richest person in China, with a net worth of about $3.5 billion.
He was born to a poor peasant family in Maotang, a small town in Lianyuan, Loudi, Hunan province in 1956.
Liang has a bachelor's degree from Central South University.
Liang worked as a top manager at a state arms plant, before getting involved in the construction-equipment industry. He is the founder and main shareholder of Sany Group, a heavy industry manufacturer based in Changsha, Hunan.
Liang is a member of the Communist Party and was elected to the party's National Congress.
Liang is married and has one son, Liang Zhizhong. He lives in Changsha.