Abstract: An accessory mounting system for mounting an accessory on a vehicle is provided. The accessory mounting system includes a mounting assembly which has an elongated rail removably connectable to the vehicle. The elongated rail is provided with a slot extending therealong and which opens on a top surface of the elongated rail. The mounting assembly also includes a connector having a head portion slidably mounted within the slot, and a shank portion extending from the head and vertically above the top surface of the elongated rail. The mounting assembly also has a mounting fixture connectable to the connector and adapted to selectively have a portion of the accessory be connected thereto, the mounting fixture is connected to the connector in a manner such that moving the connector along the slot correspondingly displaces the mounting fixture along the elongated rail to adjust the position of the accessory on the vehicle.