Namesakes
Dutch Prime Ministers:
1 prime minister
Dirk Jan de Geer 1926-1929; 1939-1940 
Harry Potter Characters:
1 character
Dirk Cresswell
Most Valuable Players:
1 winner
Dirk Nowitzki 2007 basketball
Notable Athletes:
1 basketball, 1 soccer
(basketball) Dirk Nowitzki 1978-
(soccer) Dirk Kuijt 1980-
Olympic Medalists:
2 bronze, 1 gold, 1 silver
(silver) Dirk Korthals 1984 swimming - 4x200 m freestyle relay
(bronze) Dirk Theismann 1984 water polo
(bronze) Dirk Richter 1988; 1992 swimming - 4x100 m freestyle relay
(gold) Dirk Schrade 2012 equestrian
Saints:
1 saint
Saint Theodorus van der Eem (a.k.a. Dirk) ?-1572
Title Characters:
1 song
(song) Dirk 1979 Dirk Wears White Sox