Albert Long (December 4, 1832, Washington, Pennsylvania - July 28, 1901, Liverpool, England) was an American Methodist pastor who devoted much of his life preaching in the Balkans.

At the age of 24, he graduated with awards for his theological education and was invited to become a missionary to the Methodist Episcopal Church and to move to the Balkans.

In 1863 he moved to Constantinople, the Ottoman capital, to become the overseer of the Mission of the Methodist Episcopal Church for Bulgarian lands.

[5] Long personally translated the records of Archimandrite Metodi Kusev detailing the atrocities of the suppression of the 1876 April Uprising in Bulgaria and handed them over to a reporter of the Daily News.

The actions of these men helped to form a casus belli for the 1877–1878 Russo-Turkish War, which led to Bulgarian liberation.

For twelve years they worked with Petko Slaveikov, Konstantin Fotinov and Hristodul Kostovich.