A bathtub surround is a vertical surface material that protects the walls just above a bathtub or bathtub/shower unit. Surrounds can be constructed in many styles, ranging from a single row of ceramic tile that serves as a kind of backsplash around the tub, to fully covered walls that encase the three sides of a bathtub or shower alcove. In some bathrooms, the surround can include virtually all wall surfaces.

Although typically made of ceramic tile, other materials can also be used for bathtub surrounds, including sheets of acrylic or polyester, or sheets of solid-surface material.