John Brock

John Brock may refer to:
 * John Brock (baseball) (1896–1951), American Major League Baseball catcher
 * John Brock (footballer) (1915–1976), English football goalkeeper
 * John F. Brock (born 1948), American businessman and CEO of Coca-Cola
 * John W. Brock (1914–1942), United States Navy pilot
 * John Brock, fictional character by Desmond Skirrow