Maximilian Kieffer (born 25 June 1990) is a German professional golfer who plays on the European Tour.

In May 2015, during the third round of the Dubai Duty Free Irish Open, Kieffer broke the Royal County Down course record set in 1939 by shooting 6-under-par 65.

[3] The following week, Kieffer carded a final-round 62 to finish runner-up again at the Gran Canaria Lopesan Open.

[4] In August 2022, Kieffer claimed his first European Tour victory at the D+D Real Czech Masters.

[5] *Note: The 2022 D+D Real Czech Masters was shortened to 54 holes due to weather.