|Centuries:||4th century – 5th century – 6th century|
|Decades:||410s 420s 430s – 440s – 450s 460s 470s|
|Years:||442 443 444 – 445 – 446 447 448|
|445 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1198|
|Bahá'í calendar||−1399 – −1398|
|English Regnal year||N/A|
|Chinese calendar||甲申年 (Wood Monkey)
3141 or 3081
— to —
乙酉年 (Wood Rooster)
3142 or 3082
|- Vikram Samvat||501–502|
|- Shaka Samvat||367–368|
|- Kali Yuga||3546–3547|
|Igbo calendar||−555 – −554|
|Iranian calendar||177 BP – 176 BP|
|Islamic calendar||182 BH – 181 BH|
|Minguo calendar||1467 before ROC
|Thai solar calendar||988|
|Wikimedia Commons has media related to 445.|
Year 445 (CDXLV) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Valentinianus and Nomus (or, less frequently, year 1198 Ab urbe condita). The denomination 445 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.
- Emperor Valentinian III issues an imperial edict against Manichaeism. Heavy penalties are decreed who does not denounce his religion and retain Manichaean books.
- Petronius Maximus, prominent aristocrat, is given the title of Patrician. He becomes the most honored of all non-imperial Romans and political rival of Flavius Aetius.
- Bleda, co-ruler of the Huns, dies in a hunting accident. He is possibly been murdered at the instigation of his younger brother Attila, with whom he has ruled since 434. Now about 39, Attila takes the throne for himself and becomes king of the Hunnic Empire.
- Domnus II, Patriarch of Antioch, summons a synod of Syrian bishops to confirm the deposition of Athanasius of Perrha.
- Ireland: The Diocese of Armagh is created.
- Arsenius the Great, Desert Father
- Bleda, king of the Huns (approximate date)
- Fan Ye, Chinese historian (b. 398)