The Carden Loyd tankettes were a series of British tankettes of the period between the World Wars, the most successful of which was the Mark VI, the only version built in significant numbers. It became a classic tankette design worldwide, was licence-built by several countries and became the basis of several designs produced in various countries.

Sir John Valentine Carden, 6th Baronet MBE was an English tank and vehicle designer. He was the sixth baronet of Templemore, County Tipperary, from 1931.