John Henry Gray (March 11, 1859 – April 4, 1946) was an American economist. He was a professor of economics at Northwestern University, Carleton College, and the University of Minnesota. In 1914, he served as president of the American Economic Association.
A native of Charleston, Illinois, Gray earned his bachelor's degree from Harvard University in 1887. He then pursued graduate education under Johannes Conrad at the University of Halle-Wittenberg in Germany, graduating with a PhD in 1892. He was coauthor of The Valuation and Regulation of Public Utilities.
- "Obituary: John Henry Gray 1859–1946". American Economic Review. 36 (4): 664–666. 1948. JSTOR 1801735.
- The Syllabus of Northwestern University. 1907. p. 19.
- John Henry Gray; Jack Levin (1933). The Valuation and Regulation of Public Utilities. Harper & Brothers.
- "Proceedings of the Eighty-Third Annual Meeting of the American Statistical Association: Pittsburgh, PA., December 27-29, 1921". Journal of the American Statistical Association. 18 (137): 112–121. March 1922. JSTOR 2277480.