The Qatari-Bahraini War is an armed conflict that takes place between 1867 and 1868 in the Persian Gulf.

The conflict pits Bahrain and tribes of Abu Dhabi against the tribes of Qatar.

The conflict is the most flagrant violation of the 1835 maritime truce, requiring British intervention.

The two countries agree to a truce, mediated by the United Kingdom, which leads to Britain recognizing the Al Thani royal family of Qatar as the semi-independent ruler of Qatar.

The conflict results in wide-scale destruction in both countries.