|Centuries:||1st century BC – 1st century – 2nd century|
|Decades:||0s BC 0s 10s – 20s – 30s 40s 50s|
|Years:||21 22 23 – 24 – 25 26 27|
|24 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||777|
|English Regnal year||N/A|
— to —甲申年十一月十二日
|- Vikram Samvat||80–81|
|- Shaka Samvat||N/A|
|- Kali Yuga||3125–3126|
|- Ǹrí Ìgbò||-976–-975|
|Iranian calendar||598 BP – 597 BP|
|Islamic calendar||616 BH – 615 BH|
|Juche calendar||N/A (before 1912)|
|Julian calendar||24 XXIV|
|Minguo calendar||1888 before ROC
|Thai solar calendar||567|
|Wikimedia Commons has media related to: 24|
Year 24 (XXIV) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Cethegus and Varro (or, less frequently, year 777 Ab urbe condita). The denomination 24 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.
By place 
Roman Empire 
- The Roman war against Numidia and Mauretania ends with their annexation.
- Servius Cornelius Cethegus and Lucius Visellius Varro become consuls.
- Charmides becomes Archon of Athens.
- Tacfarinas' revolt in Africa is repressed.