| Region: | Jewish philosophy |
| Era: | Medieval philosophy |
| Nachmanides Moses ben Nahman | |
| Birth Date: | 1194 |
| Birth Place: | Girona, Crown of Aragon (present-day Spain) |
| Death Date: | 1270 |
| Death Place: | Acre, Kingdom of Jerusalem |
| Main Interests: | Religious law |
Moses ben Nachman (Hebrew: מֹשֶׁה בֶּן־נָחְמָן Mōše ben-Nāḥmān, "Moses son of Nachman"; 1194–1270), commonly known as Nachmanides[1] (; Greek, Modern (1453-);: Ναχμανίδης Nakhmanídēs), and also referred to by the acronym Ramban (;) and by the contemporary nickname[2] Bonastruc ça Porta (in Catalan; Valencian ˌbɔnəsˈtɾuk sə ˈpɔrtə/; literally "Mazel Tov near the Gate", see), was a leading medieval Jewish scholar, Catalan rabbi, philosopher, physician, kabbalist, and biblical commentator. He was raised, studied, and lived for most of his life in Girona, Catalonia. He is also considered to be an important figure in the re-establishment of the Jewish community in Jerusalem following its destruction by the Crusaders in 1099.