The Holy Orthodox Order of Saint George the Great Martyr is an international, confraternal, religious, lay, pan-Orthodox order of Christian chivalry formally established in 2019 with the ecclesiastical blessing of His Eminence Metropolitan Hilarion, First Hierarch of the Russian Orthodox Church Outside Russia. As an Orthodox order of knighthood, the Order is open to any Orthodox Christian (both male and female, cleric or lay) who is in good and moral standing with the Church.

The Order is additionally open to non-Orthodox, Trinitarian Christians who profess the Nicene-Constantinopolitan Creed of 381 AD and who support the works and activities of the Order of Saint George the Great Martyr. Non-Orthodox Christians form a distinct class and become non-voting, companion members of the Order.

The Order was founded for the purpose of caring for Orthodox Christians who find themselves in need, want, or under persecution for their faith. Thus, the Order takes very seriously its desire to see full dignity, human rights, and freedom for all Orthodox Christians, regardless of where they live. For this reason, the Order places upon itself the responsibility to try and advocate for those Orthodox Christians who are not free.