How wide is a golf hole and how deep is it? July 30, 2020 by Pamela Landy A golf hole is 4.25 inches in diameter and at least 4 inches deep. Related Answers What was a summoner or A canon’s yeoman or A franklin or A manciple or a reeve? Who was the first golfer to win the prestigious grand slam? How deep is a Fathom? How deep is an ocean abyss? Who came up with the term black hole and what is it? What was Jack Nicklaus’s first major golf tournament win?