B1 (disambiguation)

B1 could refer to:
===Canon===
*B1 (Colossus), a battle droid who was sold to Kragan Gorr and worked with Neeku Vozo of the Colossus
*B1-series battle droid, the main infantry of the Trade Federation Droid Army and Separatist Droid Army
===Legends===
*B1-series worker droid, a labor droid built by AccuTronics
*B1-Series battle droid, the primary soldiers of the Trade Federation and Separatist Droid Armies