|Centuries:||4th century – 5th century – 6th century|
|Decades:||400s 410s 420s – 430s – 440s 450s 460s|
|Years:||432 433 434 – 435 – 436 437 438|
|435 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1188|
|Chinese calendar||甲戌年 (Wood Dog)
3131 or 3071
— to —
乙亥年 (Wood Pig)
3132 or 3072
|- Vikram Samvat||491–492|
|- Shaka Samvat||357–358|
|- Kali Yuga||3536–3537|
|Iranian calendar||187 BP – 186 BP|
|Islamic calendar||193 BH – 192 BH|
|Minguo calendar||1477 before ROC
|Seleucid era||746/747 AG|
|Thai solar calendar||977–978|
Year 435 (CDXXXV) 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 Theodosius and Valentinianus (or, less frequently, year 1188 Ab urbe condita). The denomination 435 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.
- Flavius Aetius, Roman general (magister militum), begins in Gaul a campaign against the Burgundians. Following their raids into neighbouring Gallia Belgica by king Gunther.
- November 14 – Emperor Theodosius II orders a new edict for the death penalty of all heretics and pagans in the Empire. Judaism is considered a legal non-Christian religion.
- King Genseric concludes a peace treaty with the Romans under which the Vandals retain Mauretania and a part of Numidia as foederati (allies under a special treaty) of Rome.
- The Vandals use Hippo Regius (modern Annaba) as port for their expeditions. Genseric establish a merchant fleet to transport goods between Africa and the Italian mainland.
- Huneric, eldest son of Genseric, is sent as a child hostage to the court at Ravenna to secure the alliance with the Western Roman Empire.
- August 10 – A figure known to Mayanist scholars as "Casper" begins a 52-year reign in Palenque.
- December 8 marks the beginning of the 9th Baktun in Mesoamerica. There is a change in political alliances just preceding the event when royal personages from the Mexican highland city of Teotihuacan consolidate power individually as Mayan kings.
- August 3 – Theodosius II exiles Nestorius, archbishop of Constantinople, to a monastery in the Libyan desert at the behest of his sister Pulcheria.
- Ibas is elected bishop of Edessa. He becomes associated with the growth of Nestorianism and openly preaching heretical doctrines in public.
- The number of representatives in the United States House of Representatives.
- John Cassian, Desert Father and theologian
- Pelagius, British monk (approximate date)
- Philip of Side, Christian church historian (approximate date)
- Rabbula, bishop of Edessa