Metropolitan Peter (secular name Peter Movilă, Ukrainian: Петро Симеонович Могила, Polish: Piotr Mohyła, Romanian: Petru Movilă, Russian: Петр Симеонович Могила; 21 December 1596 – 22 December 1646) was an influential Romanian Orthodox theologian and reformer, Metropolitan of Kiev, Halych and All-Rus' from 1633 until his death.