The Peugeot 206 is a supermini car (B-segment) designed and produced by the French car manufacturer Peugeot since May 1998 as a replacement to the Peugeot 205. Developed under the codename T1, it was released in September 1998 in hatchback form, which was followed by coupé cabriolet in September 2000, station wagon in September 2001, and a sedan version in September 2005, before being replaced by the 207 in April 2006.

The B-segment is the second smallest of the European segments for passenger cars, between the A-segment and C-segment, and commonly described as "small cars". The B-segment is the largest segment in Europe by volume, accounting for 20 percent of total car sales in 2020 according to JATO Dynamics.