The Russian Church (Bulgarian: Руска църква, romanized: Ruska tsarkva), officially known as the Church of St Nicholas the Miracle-Maker (Bulgarian: църква „Св. Николай Чудотворец“, romanized: tsarkva "Sv. Nikolay Chudotvorets", Russian: Церковь Святителя Николая Чудотворца (София)), is a Russian Orthodox church in central Sofia, Bulgaria situated on Tsar Osvoboditel Boulevard.