St. Nicholas Church (Greek: Εκκλησία του Αγίου Νικολάου Ekklisía tou Agíou Nikoláou) is an ancient East Roman basilica church in the ancient city of Myra, now a museum located in modern Demre, Antalya Province, Turkey.

[3] Its use dated from its 6th century construction for the state church of the Roman Empire by Justinian the Great.

Archaeological excavations in the Church started in 1988 directed by Prof. S. Yıldız Ötüken of Hacettepe University, Ankara, Turkey.

The work has revealed some of the northern section of the monastery complex, and also the small chapels around the nave, one of which notably contains vibrant frescoes detailing the life and miracles of the saint, and a desecrated sarcophagus which is thought to be the original burial place from which his remains were forcibly translated to Bari in 1087.

The northeast annex arcade contains the only example of St Nicholas's life cycle on ancient frescos in Turkey.