Bagsværd Kostskole og Gymnasium (Eng: 'Bagsværd Boarding School and Gymnasium'), usually referred to among students, teachers etc. as simply BK, is a private day school, gymnasium, and boarding school situated in Bagsværd, a suburb of Copenhagen. The vast majority of the 800 pupils and students at BK commute to school every day; the boarding school (Haraldsgave, lit.