The Ford Model T (colloquially known as the Tin Lizzie, T‑Model Ford, or T) is an automobile that was produced by Henry Ford's Ford Motor Company from September 1908 to October 1927. It is generally regarded as the first affordable automobile, the car that opened travel to the common middle-class American; some of this was because of Ford's innovations, including assembly line production instead of individual hand crafting. The Ford Model T was named the world's most influential car of the 20th century in an international poll.

The Model T set 1908 as the historic year that the automobile became popular. The first production Model T was produced on August 12, 1908 and left the factory on September 27, 1908, at the Piquette Plant in Detroit, Michigan. On May 26, 1927, Henry Ford watched the 15 millionth Model T Ford roll off the assembly line at his factory in Highland Park, Michigan.

There were several cars produced or prototyped by Henry Ford from the founding of the company in 1903 until the Model T came along. Although he started with the Model A, there were not 19 production models (A through T); some were only prototypes. The production model immediately before the Model T was the Model S, an upgraded version of the company's largest success to that point, the Model N. The follow-up was the Ford Model A (rather than any Model U). Company publicity said this was because the new car was such a departure from the old that Henry wanted to start all over again with the letter A.