The Mazdaspeed3 is a sport compact hatchback introduced for the 2007 model year by Mazdaspeed and produced until 2013. The Mazdaspeed3 is a performance-enhanced version of the 5-door Mazda3.

Sport compact is a United States marketing classification for a high-performance version of a compact or a subcompact car. There is no precise definition, and the description is applied to various models for promotional purposes.