The Regia was a structure in the Forum of Ancient Rome, originally the residence of the Kings. Regia may also refer to:

Latin

• Aqua regia, mixture of concentrated nitric acid and concentrated hydrochloric acid
• Regia Anglorum, British medieval reenactment organisation
• Bulla Regia, former Roman city near modern Jendouba, Tunisia
• Editio Regia, third and the most important edition of the Greek New Testament of Robert Estienne
• Via Regia, "King's Highway"
• "Vivas Schola Regia", song of the Royal High School of Edinburgh.
• Regia, a classical type of building.

Italian

• Regia Marina, "Royal Navy" 1861-1946
• Regia Aeronautica, "Royal Air Force" 1923-46
• Scala Regia, "Royal Staircase"
• Sala Regia (disambiguation), "Regal Room or Hall"

Spanish

• Fuerza Regia, Mexican professional basketball team based in Monterrey

See also

• Regis (disambiguation) (Latin "of the king")
• Regius (disambiguation) (Latin "royal" masculine adjective)
• Regium (disambiguation) (Latin "royal" neuter adjective)