BB-8 is a droid character in the Star Wars franchise. He appeared in the three films of the sequel trilogy, Star Wars: The Force Awakens (2015), Star Wars: The Last Jedi (2017), and Star Wars: The Rise of Skywalker (2019). He also appeared as a major supporting character in the animated series Star Wars Resistance, appearing in the first 17 episodes of season 1, and in the 2023 short film Rogue Not Quite One. He is a BB astromech droid serving the Resistance, and is owned by Poe Dameron. Spherical with a free-moving domed head, BB-8 is portrayed by both a rod puppet and a remote-controlled robotic unit. The character has been well received by critics and fans, and has become one of the most beloved and recognizable characters of the Star Wars saga in recent years.

In the Star Wars space opera franchise, a droid is a fictional robot possessing some degree of artificial intelligence. The term is a clipped form of "android", a word originally reserved for robots designed to look and act like a human. The word "android" itself stems from the New Latin word "androīdēs", meaning "manlike", itself from the Ancient Greek ἀνδρος (andrós) + -ειδής (-eidḗs), itself from εἶδος.