The Renault FT (frequently referred to in post-World War I literature as the FT-17, FT17, or similar) is a French light tank that was among the most revolutionary and influential tank designs in history.

The Renault FT, often referred to as the FT-17, was a ground-breaking tank design which entered service in 1918. A French light tank, the FT was the first tank to incorporate many design aspects which are now considered standard such as a fully-rotating turret and rear engine compartment.

The Renault FT (often known as the FT-17) was the first tank to have its armament inside a fully rotating turret. The FT was a radically different design to previous British and French tanks.

The Renault FT was also called “FT 17” although this specific naming was never acknowledged by Renault or any official working on the project. It was to be related to the year 1917, like “modele 1917” as it was customary for many French weapons of the time, but this was introduced after the war.