Scuba

Scuba may refer to:
 * Scuba diving, swimming underwater while breathing from a gas supply carried by the diver,
 * Scuba set, the equipment used for scuba (Self-Contained Underwater Breathing Apparatus) diving
 * Scuba, an in-memory database developed by Facebook
 * Submillimetre Common-User Bolometer Array, either of two instruments used on the James Clerk Maxwell Telescope
 * Scuba (musician)
 * Scuba (P-Model album)