Drywall mounting systems for accessories are shown and described. In one example, a system includes an accessory adapter plate, a fixation plate, a drywall fastener, and a second fastener. The drywall fastener is used to secure the accessory adapter plate to the drywall. The fixation plate is then secured to the accessory adapter plate with the second fastener, which, inter alia, prevents the rotation of the accessory adapter plate. Accessories can then be quickly and securely attached to the accessory adapter plate.