What is Rex?
{{Wiktionary}} '''Rex''' may refer to: * [[Rex (title)]] (Latin: king, ruler, monarch), a royal title ** [[King of Rome]] (Latin: Rex Romae), chief magistrate of the Roman Kingdom {{TOC right}} == Animals == ===Dogs=== * [[Rex (dog)]], once owned by Ronald Reagan * [[Rex (search and rescue dog)]], a dog that received a 1945 Dickin Medal for bravery ===Other animals=== * ''-rex'', a [[List of commonly used taxonomic affixes|taxonomic suffix]] used to describe certain large animals {{disambiguation}}