Ariston of Pella was a Christian writer of the 2nd century CE, during the period of Roman rule. He is known only from brief mentions by later Christian authors. His name indicates he came from Pella, a city east of the Jordan River, which suggests a background in the Jewish-Christian communities of Palestine. He is traditionally associated with the period following the Bar Kokhba revolt against Rome.

His sole known work is the Dialogue of Jason and Papiscus, an early example of Christian apologetic literature. The work itself is lost and survives only in fragments and references. It took the form of a debate between a Christian and a Jew, arguing that Jesus was the fulfillment of Jewish prophecy. According to modern scholars, it is significant as one of the first Christian texts to use the classical dialogue format specifically for debate with Judaism.

The work was cited by later influential Church Fathers like Origen and Jerome, indicating it was read and considered important in the early centuries of the church. Some academics suggest it served as a precursor to more developed apologetic works. Ariston of Pella’s main historical importance lies in this early attempt to define Christian belief through structured theological debate with Jewish tradition.