Koster, Wilhelm, a German theologian, was born in 1765, and early devoted himself to the study of theology. He became pastor first at Oppenheim, later at Eppingen, and died May 8, 1802. He devoted much of his time to the study of practical theology, especially to liturgy, and wrote Liturgie bei Beerdigungen (March, 1797, 8vo):-Allgem. Altarliturgie (ibid. 1799, 8vo).-Doring, Gelehrte Theol. Deutschlands, ii, 162.