A soldering gun is a tool used for soldering metals using tin-based solder to achieve a highly conductive contact. A soldering gun uses a pistol shape, and has a trigger style switch so it can be easily operated with one hand.

Applications for soldering guns include soldering high current load wires, often found in cramped spaces within a vehicles bodywork.

The tip shape of a soldering gun, in the form of a wire loop, is advantageous for getting into confined space; the tip can be rotated to get into a gap between neighbouring components. This is not practical with the cone shape of a usual soldering iron.