Armenian resistance during Hamidian massacres Armenians in World War I Armenian resistance during the Armenian genocide Caucasus campaign First Republic of ArmeniaCaucasus campaign Armenian–Azerbaijani war Armeno-Georgian War Turkish–Armenian War Soviet-Armenian conflict The Battle of Bash Abaran (Armenian: Բաշ Աբարանի ճակատամարտ Bash Abarani chakatamart, Turkish: Baş-Abaran Muharebesi) was part of Caucasus Campaign of World War I that took place in the vicinity of Bash Abaran, in 1918.

The Armenian victories at Bash Abaran, Sardarabad and Karakilisa, halted the Ottoman invasion of Eastern Armenia and were instrumental in allowing the formation of the short-lived First Republic of Armenia.

One prong of the three-pronged Ottoman attack, consisting of the 3rd Regiment of the 11th Caucasian Division, moved down from Hamamlu.

They met an Armenian force of about 1,000 riflemen under the command of Movses Silikyan at the defile of Bash Abaran, about a three-hour march from Yerevan.

After three days of fierce fighting the Armenians launched a counter-attack against the Turks on 25 May.