Identification tag

Identification tag may refer to:
 * Dog tag, an identification tag used by the military
 * Microchip implant (animal) or radio identification tag, a scanner-readable microchip implanted into livestock and pets for identification
 * Pet tag, a small flat tag worn on pets' collars or harnesses
 * Toe tag, identification tag used on the big toe of a dead person in a morgue
 * Personal badge