Northaw and Cuffley is a civil parish in the Welwyn Hatfield borough of Hertfordshire, England.

It formed part of the Hatfield Rural District from 1894,[2] when the parish council was created.

The parish was within the Metropolitan Police District and was part of the review area of the Royal Commission on Local Government in Greater London, however it did not form part of the proposed Greater London area.

It is within the Metropolitan Green Belt and has large sections of protected open land.

For postal addresses, the parish is within the EN6 postcode district of the Potters Bar post town.