Surfboard wax (also known as surfwax) is a formulation of natural and/or synthetic wax for application to the deck of a surfboard, bodyboard, or skimboard, to keep the surfer from slipping off the board when paddling out or riding a wave. 

Surfboard wax is generally composed of a mixture of paraffin, beeswax or other hard waxes; petroleum jelly can also be added to create a softer wax. Often exotic scents like coconut or bubblegum are added to give the wax an attractive scent. There are also natural alternatives available containing only organic substances like beeswax, vegetable oils (such as coconut or hemp oil), pine resin, tree pulp and natural essential oils. Many different commercial brands and varieties of surfboard wax optimized for different climates and water temperatures may be found at a surf shop.