Abstract: A splash guard or mud flap comprising a flexible, splash-intercepting body portion which may be fabricated of a material such as rubber or plastic or metal, and which is supported on and maintained in a preselected position on the fender of a vehicle by means of anchoring members adapted to be engaged along the fender of the vehicle. The anchoring members have a projection or pin-like member thereon for engaging and retaining the flexible, splash-intercepting body portion on the anchoring members. In a preferred embodiment of the splash guard, the body portion is fabricated of a material such as rubber or plastic which can be fully penetrated by the pin-like member utilizing only finger pressure. Locking means in the form of a push-on type nut advantageously is provided for the members. The splash guard, in its preferred form, can quickly and properly be positioned on the fender of a vehicle without the need for any tool.