John McHenry Nisbet, Jr. (fl. c. 1960 - 1970) was a geologist in the oil and gas industry in California. He was the son of John McHenry Nisbet, Sr. (1897 - 1962), a prominent oil executive with Cities Service Oil Company (later Citgo). Nisbet, Jr., appears to have moved around to different locations in Southern California during his career, working for Richfield Oil Company (among others) and may have later relocated to Seattle, Washington. He was active in the Pacific Section of the American Association of Petroleum Geologists.