Wallpaper is a kind of material used to cover and decorate the interior walls of homes, offices, cafes, government buildings, museums, post offices, and other buildings; it is one aspect of interior decoration. It is usually sold in rolls and is put onto a wall using wallpaper paste. Wallpapers can come plain as "lining paper" (so that it can be painted or used to help cover uneven surfaces and minor wall defects thus giving a better surface), textured (such as Anaglypta), with a regular repeating pattern design, or, much less commonly today, with a single non-repeating large design carried over a set of sheets.

Wallpaper (stylized as Wallpaper.) is an American hip hop and pop music project, fronted by producer and multi-instrumentalist songwriter Ricky Reed, based in Oakland, California. Wallpaper. is signed to Boardwalk Records/Epic Records and has played at SXSW. He uses exaggerated Auto-Tune and minimal electronic music while satirizing the lack of feeling in mainstream pop.

Wallpaper* is an IPC Media magazine focusing on  design, fashion, travel, design, entertainment, and media.