Martin Deutinger (24 March 1815 – 9 September 1864) was a German philosopher and religious writer, born in Langenpreising, Bavaria, and died at Pfäfers, Switzerland.
Deutinger first studied theology and philosophy at the Lyceum in Dillingen in 1832 before he heard the lectures of Friedrich Wilhelm Joseph Schelling in Munich in 1833 and became enthusiastic about the philosophy of art.
He was ordained as a priest in 1837, and after filling several clerical positions, taught philosophy at Freising (1841), Munich (1846), and Dillingen (1847-52).
Inspired by Schelling, Deutinger worked in aesthetics and the philosophy of religion.
He attempted an independent renewal of Christian thought in response to the challenges of idealism and romanticism.