Phelim Reagh MacDavitt or Phelim Reagh MacDevitt (Irish: Feidhlimidh Riabhach Mac Dhaibheid, or Brindled Felim - probably a reference to a white streak or streaks in his hair) was a Gaelic Irish warrior and landowner notable for his participation in the Nine Years War and later in O'Doherty's Rebellion in 1608. After playing a leading part in the Burning of Derry, he was captured and executed following the Battle of Kilmacrennan.