Namesakes
Olympic Medalists:
1 gold/bronze, 1 silver
(gold/bronze) Marieke van Doorn (a.k.a. Birgitta) 1984; 1988 field hockey 
(silver) Malin Baryard-Johnsson (a.k.a. Birgitta) 2004 equestrian
Saints:
1 saint
Saint Birgitta of Sweden 1303-1373