The Toyota Sienta (Japanese: トヨタ・シエンタ, Hepburn: Toyota Shienta) is a mini MPV with sliding doors manufactured by Toyota. It was introduced in September 2003, based on the Vitz/Yaris subcompact car, and is available at all Toyota dealerships in Japan. The Sienta is sold in Japan, Hong Kong, Singapore, Indonesia, Taiwan, Laos, and Thailand. As of 2022, it is positioned below the Voxy/Noah and above the Roomy in Toyota's MPV lineup in Japan. In Indonesia and Thailand, it serves as an upmarket alternative to the Avanza and fills the gap between Avanza and the larger Innova.