In this research paper entitled "Linguistic Atlases and their role in building a database for Arabic terminology banks" we firstly talk about geographical linguistics, then the concept of Linguistic Atlases, mentioning the German experience, the French experience, and the experience of the German Orientalist Bragstrazer in the Arab countries. Secondly, we talk about Arabic terminology banks represented in the lexical database(Meaarby), the Saudi automatic bank for terms ( Bassem), the terminology database (Qimam) in Tunisia, and the Jordan Academy for Arabic language bank of terms. Finally we mention to the extent by which the Arabic terminology banks benefit from the linguistic Atlases.