Namesakes
Baudouin of Belgium
(a.k.a. Boudewijn) (m) 1930-1993 
Other Royalty 1951-1993 Belgium (king)
Boudewijn de Groot
(m) 1944-
Notable Musicians
Boudewijn Zenden
(m) 1976-
Notable Athletes (soccer)
Gabriel of Belgium
(a.k.a. Boudewijn) (m) 2003-
Other Royalty 2003- Belgium (prince)