Ababius, also known as John the Dwarf, was a 4th-century Coptic Desert Father from Egypt. Born in Thebes to a poor family, he moved to the Scetes desert at age eighteen to follow the ascetic lifestyle of a disciple. He eventually founded a monastery near the Tree of Obedience and served as its abbot after being ordained by Pope Theophilus. Following an invasion of the Nitrian Desert, he relocated to Mount Colzim, where he spent his final days.