SW1 may refer to:
SW1, a postcode district in the London SW postcode area EMD SW1, a diesel-electric locomotive manufactured between 1938 and 1953 Star Wars: Episode I – The Phantom Menace, a 1999 film Star Wars MUSH, an online text-based role-playing game Shawn Wayans, known as DJ SW1 Cheng Lim LRT station, Singapore