Antoni Prochaska (Mai 24, 1852 – September 23, 1930) was a Polish historian.He was born in a village of Zalishchyky (now Chortkiv Raion, Ternopil Oblast) the oldest son of Andrzej, a ranger, and Angieszka. He worked as an archivist in the from 1878 to 1929. Antoni Prochaska was member of the Academy of Learning since 1893. In 1929 he was awarded by the Officer's Cross of the Order of Polonia Restituta.