|Millennium:||1st millennium BC|
|Centuries:||6th century BC – 5th century BC – 4th century BC|
|Decades:||500s BC 490s BC 480s BC – 470s BC – 460s BC 450s BC 440s BC|
|Years:||473 BC 472 BC 471 BC – 470 BC – 469 BC 468 BC 467 BC|
|470 BC by topic|
|Gregorian calendar||470 BC|
|Ab urbe condita||284|
|Ancient Egypt era||XXVII dynasty, 56|
|- Pharaoh||Xerxes I of Persia, 16|
|Ancient Greek era||77th Olympiad, year 3|
|Chinese calendar||庚午年 (Metal Horse)
2227 or 2167
— to —
辛未年 (Metal Goat)
2228 or 2168
|Coptic calendar||−753 – −752|
|Ethiopian calendar||−477 – −476|
|- Vikram Samvat||−413 – −412|
|- Shaka Samvat||N/A|
|- Kali Yuga||2632–2633|
|Iranian calendar||1091 BP – 1090 BP|
|Islamic calendar||1125 BH – 1123 BH|
|Minguo calendar||2381 before ROC
|Thai solar calendar||73–74|
|Wikimedia Commons has media related to 470 BC.|
Year 470 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Potitus and Mamercus (or, less frequently, year 284 Ab urbe condita). The denomination 470 BC 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.
- Suspected of plotting to seize power in Sparta by instigating a helot uprising, Pausanias takes refuge in the Temple of Athena of the Brazen House to escape arrest. The sanctuary is respected, but the Spartans wall in the sanctuary and starve Pausanias to death.
- The construction of the Temple of Zeus, begins at Olympia, Greece. This includes the relief sculpture (of which fragments now remain at the Archaeological Museum of Olympia) of Apollo with battling Lapiths and centaurs (approximate date).
- The Charioteer, in the Sanctuary of Apollo, Delphi, is created in commemoration of a victory in the Pythian Games of 478 or 474 BC (approximate date). It is now preserved at the Delphi Archaeological Museum.
- Pan Painter makes a "bell krater" (an earthenware piece that is used to mix water and wine) which has a red-figure decoration of Artemis slaying Actaeon. It is now preserved at the Museum of Fine Arts in Boston (approximate date).
- Aspasia of Miletus, mistress of Pericles of Athens (d. c. 400 BC)
- Mozi, Chinese philosopher (d. c. 390 BC)