Walter James "Jim" McNerney, Jr., (born 22 August 1949 in Providence, RI) is an American businessman.

McNerney graduated from New Trier High School in 1967. He attended Yale University, receiving a B.A. degree in 1971. At Yale he excelled in baseball and hockey (one of his varsity baseball teammates was George W. Bush, a future US President). After graduating from Yale he worked for a year at both British United Provident and G. D. Searle & Company, then attended Harvard University, receiving a Master of Business Administration in 1975.

McNerney began his business career at Procter & Gamble in 1975, working in brand management. He worked as a management consultant at McKinsey from 1978 to 1982.