Athenagoras (/ˌæθəˈnæɡərəs/; Ancient Greek: Ἀθηναγόρας ὁ Ἀθηναῖος; c. 133 – c. 190 AD) was an Ante-Nicene Church Father, a Christian apologist who lived during the second half of the 2nd century of whom little is known for certain, besides that he was Athenian (though possibly not originally from Athens), a philosopher, and a convert to Christianity.
Athenagoras' feast day is observed on 24 July in the Eastern Orthodox Church.