Ludwig Ross (22 July 1806 – 6 August 1859) was a German classical archaeologist. He is chiefly remembered for the rediscovery and reconstruction of the Temple of Athena Nike in 1835–1836, and for his other excavation and conservation work on the Acropolis of Athens. He was also an important figure in the early years of archaeology in the independent Kingdom of Greece, serving as Ephor General of Antiquities between 1834 and 1836.
As a representative of the "Bavarocracy" – the dominance by northern Europeans, especially Bavarians, of Greek government and institutions under the Bavarian King Otto of Greece – Ross attracted the enmity of the native Greek archaeological establishment. He was forced to resign as Ephor General over his delivery of the Athenian "Naval Records", a series of inscriptions first unearthed in 1834, to the German August Böckh for publication. He was subsequently appointed as the first professor of archaeology at the University of Athens, but lost his post as a result of the 3 September 1843 Revolution, which removed most non-Greeks from public service in the country. He spent his final years as a professor in Halle, where he argued unsuccessfully against the reconstruction of the Indo-European language family, believing the Latin language to be a direct descendant of Ancient Greek.