Bartholomäus Gesius (also: Göß, Gese, c. 1562 – 1613) was a German theologian, church musician, composer and hymn writer. He worked at Schloss Muskau and in Frankfurt (Oder) and is known for choral Passions in German and Latin and for the melody and first setting of the Easter hymn "Heut triumphieret Gottes Sohn", which was used in several compositions including a cantata by Dieterich Buxtehude and a chorale prelude by Johann Sebastian Bach (BWV 630), concluding the Easter section of his Orgelbüchlein.