AD 63 (LXIII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Regulus and Rufus (or, less frequently, year 816 Ab urbe condita). The denomination AD 63 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

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• Dou, Chinese empress of the Han Dynasty (d. AD 97)

• Claudia Augusta, daughter of Nero
• Mark the Evangelist (traditional date) (see AD 61)