- Ealing 1885-1945
- Ealing Acton 1974-1997
- Ealing Acton and Shepherds Bush 1997-
- Ealing East 1945-1950
- Ealing North 1950-
- Ealing South 1950-1974
- Ealing Southall 1974-
- Ealing West 1945-1950
- Easington 1950-
- East Grinstead 1660-1832
- East Grinstead 1885-1983
- East Ham 1997-
- East Ham North 1918-1974
- East Ham South 1918-1974
- East Kilbride 1974-2005
- East Kilbride, Strathaven and Lesmahagow 2005-
- East Looe 1660-1832
- East Lothian 1983-
- East Retford 1660-1885
- Eastbourne 1885-
- Eastleigh 1950-
- Eastwood 1983-2005
- Ebbw Vale 1918-1983
- Eccles 1885-
- Eddisbury 1983-
- Eddisbury 1885-1950
- Edinburgh 1708-1885
- Edinburgh Central 1885-2005
- Edinburgh East 2005-
- Edinburgh East 1885-1997
- Edinburgh East and Musselburgh 1997-2005
- Edinburgh Leith 1950-1997
- Edinburgh North 1918-1997
- Edinburgh North and Leith 1997-
- Edinburgh Pentlands 1950-2005
- Edinburgh South 1885-
- Edinburgh South West 2005-
- Edinburgh West 1885-
- Edinburgh and St Andrews Universities 1868-1918
- Edinburghshire 1708-1918
- Edmonton 1918-
- Egremont 1885-1918
- Eifion 1885-1918
- Elgin District of Burghs 1708-1918
- Elginshire 1708-1832
- Elginshire and Nairnshire 1832-1918
- Elland 1885-1950
- Ellesmere Port and Neston 1983-
- Elmet 1983-
- Eltham 1983-
- Enfield 1885-1950
- Enfield East 1950-1974
- Enfield Edmonton 1974-1983
- Enfield North 1974-
- Enfield Southgate 1974-
- Enfield West 1950-1974
- Ennis 1802-1885
- Enniskillen 1802-1885
- Epping 1885-1974
- Epping Forest 1974-
- Epsom 1885-1974
- Epsom and Ewell 1974-
- Erewash 1983-
- Erith and Crayford 1983-1997
- Erith and Crayford 1950-1974
- Erith and Thamesmead 1997-
- Esher 1950-1997
- Esher and Walton 1997-
- Eskdale 1885-1918
- Essex 1660-1832
- Essex Eastern 1868-1885
- Essex North 1997-
- Essex Northern 1832-1868
- Essex South East 1955-1983
- Essex South Eastern 1885-1950
- Essex Southern 1832-1885
- Essex Western 1832-1885
- Eton and Slough 1918-1983
- Evesham 1660-1950
- Exeter 1660-
- Eye 1660-1983
2,145 constituencies in total