Il numero romano MCMLXXXIII nel sistema decimale vale: 1983.
MCMLXXXIII in latino si scrive mille nongenti octoginta tres,
mentre in italiano millenovecentottantatré.
MCMLXIV, MCMLXV, MCMLXVI, MCMLXVII, MCMLXVIII, MCMLXIX, MCMLXX, MCMLXXI, MCMLXXII, MCMLXXIII, MCMLXXIV, MCMLXXV, MCMLXXVI, MCMLXXVII, MCMLXXVIII, MCMLXXIX, MCMLXXX, MCMLXXXI, MCMLXXXII, MCMLXXXIV, MCMLXXXV, MCMLXXXVI, MCMLXXXVII, MCMLXXXVIII, MCMLXXXIX, MCMXC, MCMXCI, MCMXCII, MCMXCIII, MCMXCIV, MCMXCV, MCMXCVI, MCMXCVII, MCMXCVIII, MCMXCIX, MM, MMI, MMII