Karl Christian Kehrer (1 August 1755, Dillenburg - 7 April 1833, Ballenstedt) was a German portrait, landscape and history painter.
He was born to Martin Tobias Andreas Kehrer (1717-1790), a local land commissioner, and his wife Elisabeth Sophia née Luck (1730-1806).
From 1785 to 1787, he was allowed to attend the Dresden Academy of Fine Arts, where he worked with Giovanni Battista Casanova then, after a visit to Leipzig, he returned to Ballenstedt.
After 1815, he was also a member of the "Electoral Hessian Drawing Academy", forerunner to the present Staatliche Zeichenakademie Hanau [de].
He also painted scenes from works of poetry, including three from The Artist's Pilgrimage by Goethe, and historical representations, from contemporary events and the Thirty Years War.