練乙錚（英語：Joseph Lian，1951年8月－）係香港經濟學者、作家。而家佢係日本山梨縣甲府山梨學院大學嘅經濟學教授。練喺九龍華仁書院讀中學，之後喺美國讀大學，攞到卡爾頓學院數學高級榮譽學士，明尼蘇達大學明尼阿波利斯分校經濟學博士。1992年返香港，之前任教加州大學河濱分校。曾任香港科技大學商學院副院長，係科大首屆最傑出教學獎得主。
Joseph Lian (born August 1951) is a Hong Kong economist and writer. He is now a professor of economics at Kofu Yamanashi Gakuin University, Yamanashi Prefecture, Japan. Lian studied secondary school at Wah Yan College in Kowloon, and then went to college in the United States, where he received a bachelor's degree in mathematics with advanced honors from Carleton College and a doctorate in economics from the University of Minnesota, Minneapolis. He returned to Hong Kong in 1992 and taught at the University of California, Riverside. He was the Associate Dean of the Business School of the Hong Kong University of Science and Technology and was the recipient of the inaugural Most Outstanding Teaching Award at HKUST.