John Brock may refer to:
- John Brock (baseball) (1896-1951), American Major League catcher
- John Brock (CEO) (born 1948), American businessman
- John Brock (footballer born 1915) (died 1976), English goalkeeper
- John W. Brock (1914-1942), United States Navy pilot
Other uses
- John Brock (fictional character)