A shard is an instance of a world, realm, or playground in some massively multiplayer online games (MMOGs) or in a multiplayer computer role-playing game-style server. In MMOGs, the term shard is often associated with Ultima Online and Neverwinter Nights; other MMOGs call them servers instead.

Shard is also the name of Bishop's sister in the fictional Marvel Comic Book Universe. Shard was an X.S.E. officer with her brother in the 2080s. Together, they were responsible for apprehending criminal mutants. Shard died on a mission with her brother. Bishop eventually travelled back in time, to the present, in an effort to track down one of his time’s most-wanted criminals. In later episodes, Bishop was stuck in the present and became a member of the X-Men, his idols. Shard has also since been recreated in the present, as a computer construct, and has fought alongside the X-Men and X-Factor.

Shard, also called sherd or potshard, is a term for broken bits of pottery or glass, usually used in archaeology.