Joseph Henry Kirkwood Sr. (3 April 1897 – 29 October 1970) was a professional golfer who is acknowledged as having put Australian golf on the world map.

Born in Sydney, Australia, Kirkwood left home at age ten to work on a sheep station in the Australian Outback, where his boss introduced him to the game of golf.

Kirkwood remains co-holder of the record for the widest winning stroke margin in PGA Tour history, set at the 1924 Corpus Christi Open in Texas.

[1] That year he also teamed up with Walter Hagen to begin travelling around the globe putting on golf and trick-shot exhibitions, newsreels of which were sent back home to be shown in cinemas around the U.S. Kirkwood's best performance in a major championship was a third-place finish in the PGA Championship in 1930, a semifinalist in the match play competition.

One of Joe Kirkwood Sr.'s most remarkable feats was playing a round of golf at 10-under-par 62, "breaking his age" when 63 years old.