Year 348 (CCCXLVIII) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Philippus and Salia (or, less frequently, year 1101 Ab urbe condita). The denomination 348 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.

Year 348 (CCCXLVIII) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Philippus and Salia (or, less frequently, year 1101 Ab urbe condita). The denomination 348 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.