The Toyota Avanza (Japanese: トヨタ・アバンザ, Toyota Abanza) is a mini MPV designed and produced by Daihatsu and marketed by Toyota. It is produced in Indonesia and also contract assembled in Malaysia (under Perodua) for the first generation model. Daihatsu designed and manufactures the vehicle, which is then sold by both Daihatsu and Toyota under Daihatsu Xenia (Japanese: ダイハツ・セニア, Daihatsu Senia) and Avanza nameplate respectively. Daihatsu supplies the vehicle to Toyota under a consigned production and OEM manufacturing agreement. The “Avanza” name is taken from the Spanish word “avanza”, which means “get moving” and Italian word “avanzato”, which means “advance”, while “Xenia” is taken from the Greek word “Xenia” (a Greek concept of hospitality), which means “guest-friendship”.

The Avanza is mainly developed as an entry-level MPV. Its spiritual predecessor was the Kijang, whose model program has since been split to two different models (the other being the larger, more expensive Kijang Innova) to expand Toyota’s reach in the MPV sector. Unlike the Kijang and the succeeding Kijang Innova, the Avanza uses a unibody chassis construction instead of ladder frame type.

In addition to Indonesia and Malaysia, the Avanza is sold in the Philippines, Thailand, Singapore, Brunei, Pakistan, Bangladesh, Sri Lanka, Middle East, Mexico, Peru, Colombia, Brazil, Ecuador, Bolivia, Caribbean, Egypt, South Africa and various other African countries. A rebadged version of the car was sold in China under the FAW badge until 2010.

As of October 2011, there have been 1 million Avanza/Xenia units sold, including 113,000 exported units. As of December 2018, the Avanza has been sold 1.7 million units, and combined sales with Xenia up to 2.75 million units. As of December 2019, the Avanza has been sold 1.8 million units. The Avanza has been the best-selling car in Indonesia for 14 consecutive years, between 2004 and 2018 respectively.