Servo may refer to:

• Servomechanism, or servo, a device used to provide control of a desired operation through the use of feedback
• Servo drive, a special electric amplifier used to power electric servo motors
• Tom Servo, a fictional character from the television series Mystery Science Theater 3000
• SERVO Magazine, a monthly robotics publication.

Servo may also be:

• A multipurpose tool used by Gary Seven in the Star Trek episode Assignment: Earth
• Servotronic, speed-dependent power steering
• Australian slang term for a petrol station
• A character in the television series Superhuman Samurai Syber-Squad
• A non-playable character from computer game The Sims: Livin' Large
• A playable character from the expansion pack The Sims 2: Open for Business
• A song by The Brian Jonestown Massacre from the album Give It Back!