Louis Mathieu

Louis Mathieu may refer to:


 * Louis-Mathieu Langlès (1763–1824), a French academic, philologist, linguist, translator, author, librarian and orientalist
 * Ludwik Mateusz Dembowski (1768-1812), a Polish general and traveler
 * Louis-Mathieu Molé (1781–1855), a French statesman
 * Claude-Louis Mathieu (1783–1875), a French astronomer
 * Louis Mathieu Verdilhan (1875–1928), a French artist