UK Parliamentarians
- Earl of De La WarrConservativeMember of the House of LordsPeer since 1976
- Lord De MauleyOtherMember of the House of LordsPeer since 1962
- Lord De MauleyConservativeMember of the House of LordsPeer since 2005
- Gloria De PieroLabourMP for AshfieldMP since 2010
- Lord De RamseyOtherMember of the House of LordsPeer since 1925
- Lord De RamseyConservativeMember of the House of LordsPeer since 1993
- Lord De RosOtherMember of the House of LordsPeer since 1983
- Lord De SaumarezOtherMember of the House of LordsPeer since 1969
- Lord De SaumarezOtherMember of the House of LordsPeer since 1991
- Eric DeakinsLabourMP for WalthamstowMP since 1970
- Lord Dean of BeswickLabourMember of the House of LordsPeer since 1983
- The Lord Dean of HarptreeConservativeMember of the House of LordsPeer since 1993
- Baroness Dean of Thornton-le-FyldeLabourMember of the House of LordsPeer since 1993
- Bobby DeanLiberal DemocratMP for Carshalton and WallingtonMP since 2024
- Joe DeanLabourMP for Leeds WestMP since 1974
- Josh DeanLabourMP for Hertford and StortfordMP since 2024
- Mrs Janet DeanLabourMP for BurtonMP since 1997
- Sir Paul DeanConservativeMP for WoodspringMP since 1964
- Lord DearCrossbenchMember of the House of LordsPeer since 2006
- Kate DeardenLabourMP for HalifaxMP since 2024
- Lord DearingCrossbenchMember of the House of LordsPeer since 1998
- Baroness DebbonaireLabourMember of the House of LordsPeer since 2025
- Lord DebenConservativeMember of the House of LordsPeer since 2010
- Baroness DeechCrossbenchMember of the House of LordsPeer since 2005
- Lord DeedesConservativeMember of the House of LordsPeer since 1986
- Lord DeightonConservativeMember of the House of LordsPeer since 2012
- Baroness Delacourt-Smith of AlterynLabourMember of the House of LordsPeer since 1974
- Lord DelamereNon-affiliatedMember of the House of LordsPeer since 1979
- Lord DelfontOtherMember of the House of LordsPeer since 1976
- James DempseyLabourMP for Coatbridge and AirdrieMP since 1959
- Earl of DenbighConservativeMember of the House of LordsPeer since 1995
- Earl of DenbighOtherMember of the House of LordsPeer since 1966
Source: parliament.uk · 1,424 currently sitting · Open Government Licence v3.0