|Centuries:||5th century – 6th century – 7th century|
|Decades:||480s 490s 500s – 510s – 520s 530s 540s|
|Years:||514 515 516 – 517 – 518 519 520|
|517 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1270|
|Chinese calendar||丙申年 (Fire Monkey)
3213 or 3153
— to —
丁酉年 (Fire Rooster)
3214 or 3154
|- Vikram Samvat||573–574|
|- Shaka Samvat||439–440|
|- Kali Yuga||3618–3619|
|Iranian calendar||105 BP – 104 BP|
|Islamic calendar||108 BH – 107 BH|
|Minguo calendar||1395 before ROC
|Seleucid era||828/829 AG|
|Thai solar calendar||1059–1060|
Year 517 (DXVII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Agapitus and Paulus (or, less frequently, year 1270 Ab urbe condita). The denomination 517 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.
- King Sigismund is opposed by his son Sigeric and has him strangled. Overcome with remorse, he retreats to the monastery that he founded, St. Maurice's Abbey (modern Switzerland).
- Emperor Wu Di of the Liang Dynasty becomes a Buddhist and introduces the new religion to central China. He demands that sacrifices to imperial ancestors are changed to using dried meat, instead of the traditional animals (goats, pigs and cows).
- Council of Epaone: Bishops of southern Gaul convene near Epao (present Anneyron) in Burgundy. The synod enacts the first legislation against wooden altars, forbidding the building of any but stone altars with chrism (a mixture of oil and spice).
- Dioscorus II, Coptic Orthodox patriarch of Alexandria
- Macedonius II, patriarch of Constantinople (approximate date)
- April 5 – Timothy I, patriarch of Constantinople