The Lexus LBX is a subcompact luxury crossover SUV (B-segment) marketed by Lexus, a luxury division of Toyota. Primarily developed for Europe and Japan, it was introduced in June 2023 in Milan, Italy as the smallest crossover model in Lexus' lineup, slotting below the C-segment UX. It is also the first Lexus model based on the Toyota TNGA-B platform, which is shared with the XP210 series Toyota Yaris Cross and the XP210 series Toyota Yaris. It entered production by the end of 2023 and went on sale in Europe along with additional markets in early 2024.
According to Lexus, the "LBX" name stands for "Lexus Breakthrough X(cross)-over". It is the second Lexus model with a three-letter name, following the LFA which was released in 2011. It is named LBX instead of BX to avoid trademark conflicts with Citroën which produced the BX in Europe from 1982 to 1994.