The Daihatsu Boon is a subcompact car produced by Japanese automaker Daihatsu since 2004, and also sold under Toyota brand as the Toyota Passo between 2004 and 2023. The Passo was once sold at Toyota Corolla Store Japanese dealerships until it was consolidated with other Toyota dealers in 2020.

Daihatsu Motor Co., Ltd. , commonly known as Daihatsu, is a Japanese automobile manufacturer and one of the oldest surviving Japanese internal combustion engine manufacturers. The company's headquarters are located in Ikeda, Osaka Prefecture.