Didymus is a Greek name which means "twins." As such, synonyms for Didymus include names such as Thomas (which also means "twin" in Aramaic), Gemini, Castor, Pollux, and Duo. In literature, Didymus is often associated with the apostle Thomas, who is also referred to as "Doubting Thomas" for his initial disbelief in the resurrection of Jesus Christ. Other famous historical figures named Didymus include Didymus Chalcenterus, an ancient Greek grammarian and scholar, and Didymus the Blind, a Christian theologian from Alexandria, Egypt in the 4th century. Overall, the name Didymus offers a strong, powerful presence with its many synonyms and rich historical context.