List of United Kingdom by-elections (1950–1979)

This is a list of parliamentary by-elections in the United Kingdom, with the names of the incumbent and victor and their respective parties.Where seats changed political party at the election, the result is highlighted: red for a Labour gain, blue for a Conservative gain, orange for a Liberal gain, yellow for an SNP gain, green for a Plaid Cymru gain and grey for any other gain.Where the cause of by-election is given as "resignation" or "seeks re-election", this indicates that the incumbent was appointed on his or her own request to an "office of profit under the Crown", either the Steward of the Chiltern Hundreds or the Steward of the Manor of Northstead.These appointments are made as a constitutional device for leaving the House of Commons, whose Members are not permitted to resign.No seats changed hands during this Parliament.

by-electionsUnited Kingdompolitical partyLabourConservativeLiberalPlaid CymruResignation from the House of Commons of the United KingdomSteward of the Chiltern HundredsSteward of the Manor of NorthsteadOctober 1974–1979 ParliamentLiverpool Edge HillArthur IrvineDavid AltonKnutsfordJohn DaviesJock Bruce-GardyneClitheroeDavid WalderDavid WaddingtonPontefract and CastlefordJoe HarperGeoffrey LofthouseBerwick and East LothianJohn MackintoshJohn Home RobertsonPenistoneJohn MendelsonAllen McKayManchester Moss SideFrank HattonGeorge MortonHamiltonAlexander WilsonGeorge RobertsonWycombeSir John HallRay WhitneyEpsom and EwellPeter RawlinsonArchie HamiltonLife peerageLambeth CentralMarcus LiptonJohn TilleyGlasgow GarscaddenWilliam SmallDonald DewarIlford NorthMillie MillerVivian BendallBournemouth EastJohn CordleDavid AtkinsonBirmingham LadywoodBrian WaldenJohn SeverWeekend WorldSaffron WaldenPeter KirkAlan HaselhurstGrimsbyAnthony CroslandAustin MitchellAshfieldDavid MarquandTim SmithBirmingham StechfordRoy JenkinsAndrew MacKayPresident of the European CommissionCity of London and Westminster SouthChristopher TugendhatPeter BrookeEuropean CommissionerCambridgeDavid LaneRobert Rhodes JamesCommission for Racial EqualityWorkingtonFred PeartRichard PageLeader of the House of LordsWalsall NorthJohn StonehouseEnglish NationalRobin HodgsonNewcastle-upon-Tyne CentralEdward ShortHarry CowansCable & WirelessThurrockHugh DelargyOonagh McDonaldRotherhamBrian O'MalleyStanley CrowtherWirralSelwyn LloydSpeakerDavid HuntCarshaltonRobert CarrNigel FormanCoventry North WestMaurice EdelmanGeoffrey RobinsonWoolwich WestWilliam HamlingPeter Bottomley1979 general electionFebruary–October 1974 ParliamentNewham SouthSir Elwyn JonesNigel SpearingLord High Chancellor of Great Britain1970 – February 1974 ParliamentMartin MaddanTimothy SainsburyGlasgow GovanJohn RankinMargo MacDonaldEdinburgh NorthEarl of DalkeithAlexander FletcherBerwick-upon-TweedAntony LambtonAlan BeithMalcolm Stoddart-ScottDavid AustickIsle of ElyHarry Legge-BourkeClement FreudManchester ExchangeWilliam GriffithsWesthoughtonTom PriceRoger StottWest BromwichMaurice FoleyBetty BoothroydLincolnDick TaverneDemocratic LabourDundee EastGeorge ThomsonGeorge MachinChester-le-StreetNorman PentlandGiles RadiceUxbridgeCharles CurranMichael ShersbySutton and CheamRichard SharplesGraham TopeGovernor of BermudaRochdaleJack McCannCyril SmithSouthwarkRay GunterHarry LambornKingston-upon-ThamesJohn Boyd-CarpenterNorman LamontCivil Aviation AuthorityMerthyr TydfilS. O. DaviesIndependent LabourEdward RowlandsMacclesfieldArthur Vere HarveyNicholas WintertonWidnesJames MacCollGordon OakesStirling and FalkirkMalcolm MacphersonHarry EwingGreenwichRichard MarshGuy BarnettBritish RailHayes and HarlingtonArthur SkeffingtonNeville SandelsonGeorge JegerEdmund MarshallBromsgroveJames DanceTerry DavisSouthampton ItchenHorace KingBob MitchellArundel and ShorehamHenry KerbyRichard LuceLiverpool ScotlandWalter Alldritt