Anton Oberbeck (25 March 1846 – 23 October 1900) was a German physicist from Berlin. He studied at Heidelberg and the University of Berlin, obtaining his doctorate from the latter in 1868. From 1870 to 1878 he was a teacher at Sophien-Realgymnasium in Berlin, during which time, he participated in the Franco-Prussian War (1870–71). He lectured at Halle and Karlsruhe and conducted research at the University of Greifswald (1885–1895), and later at the University of Tübingen.