R. or r. may refer to:
* ''
Reign
A reign is the period of a person's or dynasty's occupation of the office of monarch of a nation (e.g., Saudi Arabia, List of Belgian monarchs, Belgium, Co-prince of Andorra, Andorra), of a people (e.g., List of Frankish kings, the Franks, List of ...
'', the period of time during which an Emperor, king, queen, etc., is ruler.
* ''
Rex'', abbreviated as R., the Latin word meaning King
* ''Regina'', abbreviated as R., the Latin word meaning
Queen
Queen or QUEEN may refer to:
Monarchy
* Queen regnant, a female monarch of a Kingdom
** List of queens regnant
* Queen consort, the wife of a reigning king
* Queen dowager, the widow of a king
* Queen mother, a queen dowager who is the mother ...
* or , abbreviated as r., used in
historiography
Historiography is the study of the methods of historians in developing history as an academic discipline, and by extension is any body of historical work on a particular subject. The historiography of a specific topic covers how historians ha ...
to designate the ruling period of a person in dynastic power, to distinguish from his or her lifespan (e.g. "Charles V (r. 1519–1556)")
* Abbreviation R., meaning ''Rex'' or ''Regina.'' Commonly used for criminal prosecution in
Commonwealth realms where offences are brought in the name of the monarch (e.g. ''"R. v Defendant"'')
*
R., an album by American singer R. Kelly
See also
*
R (disambiguation)
R is the eighteenth letter of the Latin alphabet.
R or r may also refer to:
Science Biology and medicine
* Arginine, an amino acid
* ATC code R ''Respiratory system'', a section of the Anatomical Therapeutic Chemical Classification System
* C ...
*
*
*
R, eighteenth letter of the English and Latin alphabets
{{Disambiguation