Gizmo

In technology:

• The Gizmo or "Gizmotron", an effect unit for the electric guitar
• Gizmo key, found on certain flutes
• Gizmo5, a peer-to-peer Internet telephony and instant messaging software application
• Gizmondo, a handheld gaming console
• Gizmo, an OpenGL compiler used in Wavemetrics IGOR Pro software
• Gizmo, a bounding box used for manipulating objects in 3D modeling computer programs
• Gizmo, nickname of VoIP phone adapters that were used by SunRocket.
• Gizmo Pty Ltd, Australian IT Company based in major capital cities.

In entertainment:

• The Gizmos, a 1970s proto-punk band from Indiana
• Gizmo Williams, a former kick returner in Canadian Football
• Gizmo!, a 1977 documentary film directed by Howard Smith
• Gadgets and Gizmos, a Canadian television show about technological devices

In fiction:

• Gizmo (comics), a member of the H.I.V.E. Five in the Teen Titans animated series
• Gizmo (comic book), a 1986 comic book series created by Michael Dooney
• Gizmo Duck, a character in the DuckTales series
• Gizmo, a main character in the films Gremlins and Gremlins 2: The New Batch
• Don Gizmo, a character in the Fallout computer game