Ludwig Gotthard Kosegarten (February 1, 1758 – October 26, 1818), also known as Ludwig Theobul or Ludwig Theoboul, was a German poet and Lutheran preacher.
Kosegarten was born in Grevesmühlen, then part of Swedish Pomerania. After studying theology at the University of Greifswald, he served as the pastor of Altenkirchen on the island of Rügen.
Kosegarten's books were burned at the Wartburg festival on October 18, 1817. He influenced the work of Philipp Otto Runge, Caspar David Friedrich, and the music of Franz Schubert.