|Millennium:||1st millennium BC|
|Centuries:||6th century BC – 5th century BC – 4th century BC|
|Decades:||480s BC 470s BC 460s BC – 450s BC – 440s BC 430s BC 420s BC|
|Years:||457 BC 456 BC 455 BC – 454 BC – 453 BC 452 BC 451 BC|
|454 BC by topic|
|Gregorian calendar||454 BC|
|Ab urbe condita||300|
|Bahá'í calendar||−2297 – −2296|
|English Regnal year||N/A|
|Chinese calendar||丙戌年 (Fire Dog)
2243 or 2183
— to —
丁亥年 (Fire Pig)
2244 or 2184
|Coptic calendar||−737 – −736|
|Ethiopian calendar||−461 – −460|
|- Vikram Samvat||−397 – −396|
|- Shaka Samvat||N/A|
|- Kali Yuga||2648–2649|
|Igbo calendar||−1453 – −1452|
|Iranian calendar||1075 BP – 1074 BP|
|Islamic calendar||1108 BH – 1107 BH|
|Minguo calendar||2365 before ROC
|Thai solar calendar||90|
|Wikimedia Commons has media related to 454 BC.|
Year 454 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Capitolinus and Varus (or, less frequently, year 300 Ab urbe condita). The denomination 454 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.
- Persian rule in Egypt is finally restored by Megabyzus, satrap of Syria, after a prolonged struggle which has included dealing with a military intervention by Athens. The leader of the revolt, Inaros, is crucified by the Persians.
- Decree issued by Artaxerxes I, King of Persia that authorized the rebuilding of both the city of Jerusalem and the Temple was given to Nehemiah. c.f. Nehemiah 2:1-20
- Pericles leads a naval expedition in the Corinthian Gulf, in which Athens defeats Achaea. He then attacks Sicyon and Acarnania, after which he unsuccessfully tries to take Oeniadea on the Corinthian Gulf, before returning to Athens.
- Pericles declares that the Delian League's considerable treasury at Delos is not safe from the Persian navy and has the treasury transferred to Athens, thus strengthening Athens' power over the League.
- The treasury of the Delian League is moved from Delos to Athens.
- The Roman Plebs, suffering from a number of economic and financial ills, force the city’s patricians to begin the reform and codification of the law. As a first act, a three-man commission is sent to Athens to study that city's laws.
- Hostilities between Segesta and Selinunte, two Greek cities on Sicily, take place over access to the Tyrrhenian Sea.