Théodore Reinach (3 July 1860 – 28 October 1928) was a French archaeologist, mathematician, lawyer, papyrologist, philologist, epigrapher, historian, numismatist, musicologist, professor, and politician.

He wrote important works on the ancient kingdoms of Asia Minor: Trois royaumes de l'Asie Mineure, Cappadoce, Bithynie, Pont (1888), Mithridate Eupator (1890);[3] Numismatique Ancienne: Trois Royaumes De L'asie Mineure, Cappadoce–Bithynie–Pont (Paris), and also a critical edition and translation with Henri Weil of Plutarch's Treatise on Music; and an Histoire des Israélites depuis la ruine de leur indépendance nationale jusqu'à nos jours (2nd ed., 1901).

The Reinachs spent time on the French Riviera and in 1902 hired the architect Emmanuel Pontremoli to design a villa at Beaulieu-sur-Mer.

Following the German occupation of France during World War II, the Villa was seized by the Nazis and Léon and Béatrice Reinach and their two children were sent to Auschwitz concentration camp where they were murdered.

Fanny Reinach's mother was a member of the Ephrussi family whose great-uncle Maurice was married to Béatrice de Rothschild.