Saint Nektarios or Nektarios of Pentapolis or Nektarios of Aegina, known as Anastasios Kefalas, was a Greek Thracian bishop and theologian, a contemporary miracle-working saint of the Eastern Orthodox Church.

The Monastery of Agios Nektarios in Aegina is one of the top attractions of the island and a place of attraction for its visitors who flock to the spot by the thousands throughout the year to worship.