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Around the globe, Diaconus (Deacon , Diakon , Diaca ) is a rare masculine first name. The given name Diaconus is habitual in Hong Kong, where it is a rare boy's name, Ghana, and Australia. Measured by absolute frequency, this name is the most popular in the United States, Nigeria, and Ghana. More prevalently, Diaconus is the last name as well as the forename.
Diaconus is also a name for the fictitious and mythical characters: Deacon Frost , the fictional character in Marvel comic books; Deacon Blackfire , the DC Comics supervillain, Batman: Arkham Knight; Deacon Owl , the owl from Disney's The Rescuers; Deacon Thumb (a prosperous farmer) , the operatic character in the opera Bilby's Doll and Deacon Osip Nikiforovich , the operatic character in the opera Christmas Eve by Nikolai Rimsky-Korsakov, among other works.