Chatham Saw Mill is the saw mill situated in a small island called Chatham Island. Chatham Island was formerly known as Mark Island and it is connected to Port Blair by a bridge.

It was set up in 1883 by the British Govt. with the primary objective to meet the local requirements of saw and timber for the constructional works. It is owned by the state government.

The Chatham saw mill is one of the biggest and the oldest saw mills built in Asia. It is a store house of timber varieties like, Padauk, Gurjan, Marble, Satin Wood, etc. Within the saw mill compound is a museum showcasing the various timber wealth of the Andaman and Nicobar Islands. The museum offers an insight in to forest activities through scale models and display decorative pieces made of Padauk, Marble, Gurjan, Satin Wood, etc.

Chatham Saw Mill reamins functional on all days except on Sundays and Industrial Holidays.