A golf bag clamp apparatus comprises an elongated body having front and back side members configured to conform to specific features of a surface of a golf bag. The clamp apparatus is an accessory that is added to golf bags to allow any golf bag to be safely and securely transported on any golf cart configuration. The clamp apparatus is molded so that the elongated body forms a member bent at an upper portion, with one or more curvatures in the elongated body to adhere to contours of a golf bag so that no damage occurs when the golf bag is secured to a golf cart. Angled portions of the front side have recessed cavities within which a strap assembly is coupled to the clamp apparatus to enable coupling of a golf bag to one or more fixed members of a golf cart. The strap assembly may also be adhered to one of the side members to enable coupling of a golf bag to the one or more fixed members of the golf cart.