Abstract: An antenna mount is provided for attaching a radio antenna to the exterior of a vehicle in a manner that allows the mount to be quickly removed from the vehicle. The mount includes two clamps which fit over the support frame bars for an accessory mounted on the exterior of a vehicle, such as a rearview mirror or luggage rack. The first clamp includes a base plate to which a radio antenna mounts. Pivotally connected to one end of the base plate is a support bar grip which attaches one end of the base plate to one of the supporting bars. A locking arm prevents the support bar grip from rotating relative to the base plate once the antenna mount is attached to the supporting bar. The second clamp also includes a grip for engaging a second support bar. This support bar grip is slidably attached to the base plate and prevents the first clamp from becoming disengaged from the supporting bar to which it is attached. A spring couples this support bar grip to the first clamp.