North East Derbyshire is a constituency created in 1885 represented in the House of Commons of the UK Parliament since 2017 by Lee Rowley of the Conservative Party. This was the first time a Conservative candidate had been elected since 1935. The seat had been, relative to others, a marginal seat from 2005 to 2019 as its winner's majority had not exceeded 5.7% of the vote since the 23.2% majority won in that year. The seat has changed hands once since that year and is no longer marginal after the 26% majority won in 2019.