Saint Sophia Cathedral (Greek: Καθεδρικός ναός της Αγίας Σοφίας, romanized: Kathedrikós naós tis Agías Sophías) is a Greek Orthodox church on Moscow Road in the Bayswater area of London.
It was consecrated as the Church of the Holy Wisdom on 5 February 1882 by Antonios, Metropolitan of Corfu, as a focus for the prosperous Greek community that had settled in London, particularly around Paddington, Bayswater and Notting Hill.