Alibag is a coastal town and municipal council in Raigad district of Maharashtra, India. It is the headquarters of the Raigad district.
Revdanda, Chaul, Nagaon, Akshi, Varsoli, Thal, Navgaon, Kihim and Aawas villages were known as "Ashtagare".
Alibag and its surrounding villages are the historic hinterland of Bene Israeli Jews. There is a synagogue in the "Israel Ali" (Marathi इस्राएल आळी meaning Israel lane) area of the town. A Bene Israelite named Ali used to live there at that time. He was a rich man and owned many plantations of mangoes and coconuts in his gardens. Hence the locals used to call the place "Alichi Bagh"(Marathi for "Gardens of Ali"), or simply "Alibag", and the name stuck.