Alexander of Comana was a third-century bishop serving in Comana, Pontus. Also known as Alexander Carbonarius, he earned this nickname because he worked as a charcoal burner to avoid worldly prestige and maintain humility. Although he was initially overlooked due to his lowly occupation, his character was eventually recognized by Gregory Thaumaturgus. After being appointed to his episcopal see, he governed with wisdom until he was martyred during the persecutions under Decius.