Dirk Werner Nowitzki, German pro basketball player
Dirk Been, American reality TV personality on "Survivor"
Dirk Bogarde (born DerekJulesGaspardUlricNiven van den Bogaerde), English actor
Dirk Kuyt, Dutch footballer
Dirk Arthur Kempthorne, former U.S. Secretary of the Interior
Dirk Maggs, British radio producer, director and writer
Dirk Fock, Governor-General of the Dutch East Indies
Dirk Strider, character in the web comic "Homestuck"
Dirk Diggler, fictional porn star in the movie "Boogie Nights"
Dirk Calloway, character in the movie "Rushmore"
Dirk Pitt, character in a series of novels by Clive Cussler