Sittingbourne and Sheppey is a constituency[n 1] in Kent represented in the House of Commons of the UK Parliament since the 2024 general election by Kevin McKenna, a Labour politician and qualified nurse.

[n 2] 1997–2010: The Borough of Swale wards of Borden, Eastern, Grove, Hartlip and Upchurch, Iwade and Lower Halstow, Kemsley, Milton Regis, Minster Cliffs, Murston, Newington, Queenborough and Halfway, Roman, Sheerness East, Sheerness West, Sheppey Central, West Downs, Woodstock.

2010–2015: The Borough of Swale wards of Borden, Chalkwell, Grove, Hartlip, Newington and Upchurch, Iwade and Lower Halstow, Kemsley, Leysdown and Warden, Milton Regis, Minster Cliffs, Murston, Queenborough and Halfway, Roman, St Michael's, Sheerness East, Sheerness West, Sheppey Central, Teynham and Lynsted, West Downs, Woodstock.

2015–2024: The Borough of Swale wards of Bobbing, Iwade and Lower Halstow; Borden and Grove Park; Chalkwell; Hartlip, Newington and Upchurch; Homewood; Kemsley; Milton Regis; Minster Cliffs; Murston; Queenborough and Halfway; Roman; Sheerness; Sheppey Central; Sheppey East; Teynham and Lynsted; The Meads; West Downs; and Woodstock.

Maintaining its bellwether status, the seat was held by Conservative Gordon Henderson at the 2010, 2015, 2017 and 2019 elections with very strong majorities, then taken by Labour's Kevin McKenna in 2024.