William Cochran
William Cochran may refer to:
- William Cochran , Scottish painter
- William Cochran , Irish-born merchant and political figure in Nova Scotia
- William Cochran , Canadian clergyman and president of University of King's College
- William Cochran , British physicist
- William Cochran , American politician and businessman
- William Cochran , American operatic tenor
- William D. Cochran, American football player
- , American astronomer
- William Gemmell Cochran, British-American statistician
- William Granville Cochran, American judge and politician
- William Thad Cochran, U.S. senator from Mississippi