|Millennium:||1st millennium BC|
|Centuries:||2nd century BC – 1st century BC – 1st century|
|Decades:||50s BC 40s BC 30s BC – 20s BC – 10s BC 0s BC 0s|
|Years:||29 BC 28 BC 27 BC – 26 BC – 25 BC 24 BC 23 BC|
|26 BC by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Gregorian calendar||26 BC|
|Ab urbe condita||728|
|Bahá'í calendar||−1869 – −1868|
|English Regnal year||N/A|
|Chinese calendar||甲午年 (Wood Horse)
2671 or 2611
— to —
乙未年 (Wood Goat)
2672 or 2612
|Coptic calendar||−309 – −308|
|Ethiopian calendar||−33 – −32|
|- Vikram Samvat||31–32|
|- Shaka Samvat||N/A|
|- Kali Yuga||3076–3077|
|Igbo calendar||−1025 – −1024|
|Iranian calendar||647 BP – 646 BP|
|Islamic calendar||667 BH – 666 BH|
|Julian calendar||26 BC|
|Minguo calendar||1937 before ROC
|Thai solar calendar||518|
|Wikimedia Commons has media related to 26 BC.|
Year 26 BC was either a common year starting on Tuesday or Wednesday or a leap year starting on Monday, Tuesday or Wednesday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Monday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Taurus (or, less frequently, year 728 Ab urbe condita). The denomination 26 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.
- Imperator Caesar Augustus becomes Roman Consul for the eighth time. His partner Titus Statilius Taurus becomes Consul for the second time.
- Cleopatra Selene marries Juba II of Numidia, and as a wedding present Augustus makes her the queen of Mauretania in her own right.
- Tiridates II invades Parthia and issues coins dated from March and May, 26 BC.
- Gavius Silo, orator, is heard by Caesar Augustus, mentioned by Seneca.
- Augustus starts campaign against the Cantabrians in northern Hispania, he leads an army (8 legions) and consolidate the north-eastern region.
- Dioteimus Alaieus is one of the Archons of Athens.