Servo may refer to:
- Servomechanism, or servo, a device used to provide control of a desired operation through the use of feedback
- Servo (radio control), a small, cheap, mass-produced actuator used for radio control and small robotics
- Servo bandwidth
- Servo control
- Servo drive, a special electric amplifier used to control electric servomechanisms
- Servo motor
- Servo valve
- SERVO Magazine, a monthly robotics publication
- Servo (layout engine), a web browser layout engine
Servo may also be:
- Tom Servo, a fictional character from the television series Mystery Science Theater 3000
- A fictitious multipurpose tool used by Gary Seven in the Star Trek episode Assignment: Earth
- A Naval tool used to measure voltage
- Servotronic, speed-dependent power steering
- Australian slang term for a petrol station; a contraction of "service 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!
- A defunct UK punk band