Amber Valley is a constituency^{[n 1]} in Derbyshire, represented in the House of Commons of the UK Parliament since 2010 by Nigel Mills, a Conservative.^{[n 2]}

The constituency was created in 1983, and was held by Phillip Oppenheim of the Conservative Party from its creation until Judy Mallaber of the Labour Party won the seat in 1997. She was narrowly defeated in 2010 by Nigel Mills, a Conservative, who increased his majority in 2015 and 2017.^[4]

1983–1997: The District of Amber Valley wards of Aldercar, Alfreton East, Alfreton West, Codnor, Denby and Horsley Woodhouse, Heage and Ambergate, Heanor and Loscoe, Heanor East, Heanor West, Holbrook and Horsley, Kilburn, Riddings, Ripley, Ripley and Marehay, Shipley Park, Somercotes, Swanwick, and Wingfield, and the Borough of Erewash wards of Breadsall and Morley, Little Eaton, and Stanley.

1997–2010: The Borough of Amber Valley wards of Aldercar, Alfreton East, Alfreton West, Codnor, Crich, Denby and Horsley Woodhouse, Heage and Ambergate, Heanor and Loscoe, Heanor East, Heanor West, Holbrook and Horsley, Kilburn, Riddings, Ripley, Ripley and Marehay, Shipley Park, Somercotes, Swanwick, and Wingfield, and the Borough of Erewash wards of Breadsall and Morley, Little Eaton, and Stanley.

2010–present: The Borough of Amber Valley wards of Alfreton, Codnor and Waingroves, Heage and Ambergate, Heanor and Loscoe, Heanor East, Heanor West, Ironville and Riddings, Kilburn, Denby and Holbrook, Langley Mill and Aldercar, Ripley, Ripley and Marehay, Shipley Park, Horsley and Horsley Woodhouse, Somercotes, Swanwick, and Wingfield.

The Amber Valley constituency is located in the east of Derbyshire, and covers the market and manufacturing towns of Alfreton, Heanor and Ripley; in a majority of council elections from 1960 to 2012, these were favourably disposed to the Labour Party. The constituency also contains many rural and suburban wards, which during the same period generally had a majority in support of the Conservatives. The constituency stretches from the edge of the Peak District to the northern edge of Derby, which forms another set of neighbourhoods more favourably disposed to the Conservatives.

From 2000 to 2023 the Conservatives controlled Amber Valley Borough Council with the exception of a year from 2014 to 2015 and from 2019 to 2021 when Labour were in power. In 2023, Labour retook control. Prior to this, the council was held by Labour or under no overall control for all but three years from its formation in 1973.

The constituency's generally small majorities and bellwether status since 1983 (being won by the party that nationally holds the most parliamentary seats) means Amber Valley was, by most common measures, a marginal seat.

• List of parliamentary constituencies in Derbyshire
• Opinion polling for the next United Kingdom general election in individual constituencies