Silica (disambiguation)

Silica or silicon dioxide is a chemical compound.

Silica may also refer to:
 * Silica gel, a desiccant
 * Silica, Rožňava District, Slovakia
 * Silica, Kansas, United States
 * Silica, Minnesota, United States
 * Silica, West Virginia
 * Silica, Wisconsin, United States
 * USS Silica (IX-151), a boat
 * Silica, a character from the light novel and anime series Sword Art Online