Royal Air Force North Witham or more simply RAF North Witham is a former Royal Air Force station located in Twyford Wood, off the A1 between Stamford and Grantham, Lincolnshire, England about 104 miles (167 km) north-northwest of London.

The site opened in 1943 during the Second World War and used both the Royal Air Force and United States Army Air Forces, initially as transport airfield then for miscellaneous uses, before closing in 1956. Today the remains of the airfield are mostly woodland maintained by the Forestry Commission with the old concrete runways still accessible.