Lachner is a German surname. Notable people with the surname include:
Ernest A. Lachner (1915–1996), American ichthyologist Franz Lachner (1803–1890), German composer Ignaz Lachner (1807–1895), German conductor, composer Ludwig Lachner (1910–2003), German footballer Roberto Garcia Lachner (born 1977), Costa Rican triathlete Vinzenz Lachner (1811–1893), German conductor, composer
See also Lackner (surname)