Alibag (Nagaon) is a coastal city and a municipal council in Raigad district of Maharashtra, India. It is the headquarters of the Raigad district and is south of the city of Mumbai. Alibag is part of the Mumbai Metropolitan Region and is situated at a distance of about 100 km from Mumbai and 150 km from Pune. Alibag is a holy place for Goddess Shree Padmakshi Renuka. She is also known as goddess of Konkan.

Alibag and its surrounding villages are the historic hinterlands of Bene Israel Jews. According to Indian Jewish historian Esther David, Jews arrived in the region over 2000 years ago, escaping persecution from the Roman Empire, when their ship wrecked here. As they got into the business of oil-pressing and plantations, continued practising Sabbath and took holidays on Saturday, they came to be known as 'Shanvar-telis'[1] There is a synagogue named 'Magen Aboth synagogue' in the "Israel Alley" area of the town.

Revdanda, Chaul, Nagaon, Akshi, Varsoli, Thal, Navgaon, Kihim, and Aawas villages were known as "Ashtagare". After retirement, Kanhoji Angre the Grand Admiral of the Maratha Navy settled and spent his last days in Alibag.