威廉·杰克·鲍莫尔（William Jack Baumol，1922年2月26日－），美国经济学家，纽约大学经济学系教授，同时也是普林斯顿大学教授。他做了大量有关劳动市场和其他影响经济之要素的研究，此外也还做了对经济思想史方面重要的贡献。

鲍莫尔较广为人知的研究有可竞争市场、交易性货币需求的鲍莫尔-托宾模型、鲍莫尔成本病、庇古税等。

2006年，美国经济学会的年度会议中，特别地以鲍莫尔的名字为名召开，会中更介绍了鲍莫尔教授12篇有关企业家精神的论文，推崇尊敬他多年来在这方面的研究贡献。

William Jack Baumol (born February 26, 1922) is an American economist. He is a professor of economics at New York University, Academic Director of the Berkley Center for Entrepreneurship and Innovation, and Professor Emeritus at Princeton University. A prolific author of more than eighty books and several hundred journal articles, Baumol has written extensively about labor market and other economic factors that affect the economy. He also made significant contributions to the theory of entrepreneurship and the history of economic thought. He is among the most influential economists in the world according to IDEAS/RePEc. He was elected a Fellow of the American Academy of Arts and Sciences in 1971. He was considered a candidate for the Nobel Prize in Economics for 2003, and Thompson Reuters cited him as a potential recipient in 2014.