Poock has appeared as Pollock, Pollocke, Polk, Polke, Pollok, Pollick, Polloch, Pook, Pooke, Poock, Pogue, Poag, Poage, Poague, Poak and many more. First found in Renfrewshire , where the first occurrence of the name is Peter, son of Fulbert or Fulburt who was granted the lands of Upper Pollock by the