|Centuries:||2nd century – 3rd century – 4th century|
|Decades:||170s 180s 190s – 200s – 210s 220s 230s|
|Years:||202 203 204 – 205 – 206 207 208|
|205 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||958|
|Chinese calendar||甲申年 (Wood Monkey)
2901 or 2841
— to —
乙酉年 (Wood Rooster)
2902 or 2842
|Coptic calendar||−79 – −78|
|- Vikram Samvat||261–262|
|- Shaka Samvat||127–128|
|- Kali Yuga||3306–3307|
|Iranian calendar||417 BP – 416 BP|
|Islamic calendar||430 BH – 429 BH|
|Minguo calendar||1707 before ROC
|Seleucid era||516/517 AG|
|Thai solar calendar||747–748|
Year 205 (CCV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Aurelius and Geta (or, less frequently, year 958 Ab urbe condita). The denomination 205 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.
- Marcus Aurelius Antoninus Augustus and his brother Publius Septimius Geta Caesar become Roman Consuls.
- Hadrian's Wall is restored, after heavy raids by Caledonian tribes had overrun much of northern Britain.
- Gaius Fulvius Plautianus, praetorian prefect and father-in-law of Caracalla, is assassinated.
- Aemilius Papinianus becomes praetorian prefect.
- Cao Rui, second emperor of the Kingdom of Wei (d. 239)
- Sima Wang, general of Wei and the Jin Dynasty (d. 271)
- Shan Tao, Chinese taoist (d. 283)
- Plotinus (according to his student Porphyry) (d. 270)
- Xin Xianying, daughter of Xin Pi (d. 284)