|Centuries:||6th century – 7th century – 8th century|
|Decades:||650s 660s 670s – 680s – 690s 700s 710s|
|Years:||684 685 686 – 687 – 688 689 690|
|687 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1440|
|Bahá'í calendar||-1157 – -1156|
|English Regnal year||N/A|
|Chinese calendar||丙戌年 (Fire Dog)
3383 or 3323
— to —
丁亥年 (Fire Pig)
3384 or 3324
|- Vikram Samvat||743–744|
|- Shaka Samvat||609–610|
|- Kali Yuga||3788–3789|
|Igbo calendar||-313 – -312|
|Minguo calendar||1225 before ROC
|Thai solar calendar||1230|
|Wikimedia Commons has media related to 687.|
Year 687 (DCLXXXVII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. The denomination 687 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.
- King Theuderic III of Neustria is defeated by Pepin of Herstal, Mayor of the Palace of Austrasia, at the Battle of Tertry near Péronne in modern France. Austrasia and Neustria are combined again; Pepin becomes de facto ruler of both areas.
- Egica succeeds Erwig as king of the Visigoths.
- Adamnan visits the Northumbrian court of Ecgfrith to ransom Irish captives.
- December 15 – Pope Sergius I succeeds Pope Conon as the 84th pope.
- Construction of the Dome of the Rock is started in Jerusalem.
- March 20 – Cuthbert of Lindisfarne, Anglo-Saxon Christian saint
- September 21 – Pope Conon
- Erwig, king of the Visigoths