Roger Maynwaring, variously spelt Mainwaring or Manwaring, (c. 1589/1590 – 29 June 1653) was a bishop in the Church of England, censured by Parliament in 1628 for sermons seen as undermining the law and constitution. His precise motives for doing so remain unclear; unlike William Laud, he was not an Arminian, and many contemporaries believed he did so for preferment. He became Bishop of St Davids in 1636; in 1641, the Long Parliament issued a warrant for his arrest, and he fled to Ireland.