Fort St George (or historically, White Town) is the name of the first English fortress in India, founded in 1639 at the coastal city of Madras, the modern city of Chennai.

The fort was completed on April 23, coinciding with St George's Day, celebrated in honour of the patron saint of England. The Fort is a stronghold with six-meter high walls that withstood a number of assaults in the 18th century. It briefly passed into the possession of the French from 1746 to 1749, but was restored to Great Britain under the Treaty of Aix-la-Chapelle, which ended the War of the Austrian Succession.

The Fort now serves as the administrative headquarters for the legislative assembly of Tamil Nadu state and it still houses a garrison of troops in transit to various locations at South India and the Andamans. The Fort Museum contains many relics of the Raj era, including portraits of many of the Governors of Madras.