Postwick with Witton is a civil parish on the Broads in the English county of Norfolk, comprising the two adjacent villages of Postwick and Witton. Postwick is some 4.5 miles east of the city of Norwich, just south of the eastern end of the A47 Norwich southern bypass on the north bank of the River Yare. Witton lies 1.75 miles to the north-east, north of the A47.