| Gainsborough | Sir Edward Leigh | Conservative | 9 June 1983 |
| Gateshead Central and Whickham | Mark Ferguson | Labour | 4 July 2024 |
| Gedling | Michael Payne | Labour | 4 July 2024 |
| Gillingham and Rainham | Naushabah Khan | Labour | 4 July 2024 |
| Glasgow East | John Grady | Labour | 4 July 2024 |
| Glasgow North | Martin Rhodes | Labour | 4 July 2024 |
| Glasgow North East | Maureen Burke | Labour | 4 July 2024 |
| Glasgow South | Gordon McKee | Labour | 4 July 2024 |
| Glasgow South West | Dr Zubir Ahmed | Labour | 4 July 2024 |
| Glasgow West | Patricia Ferguson | Labour | 4 July 2024 |
| Glastonbury and Somerton | Sarah Dyke | Liberal Democrat | 20 July 2023 |
| Glenrothes and Mid Fife | Richard Baker | Labour | 4 July 2024 |
| Gloucester | Alex McIntyre | Labour | 4 July 2024 |
| Godalming and Ash | Sir Jeremy Hunt | Conservative | 5 May 2005 |
| Goole and Pocklington | David Davis | Conservative | 10 July 2008 |
| Gordon and Buchan | Harriet Cross | Conservative | 4 July 2024 |
| Gorton and Denton | Hannah Spencer | Green Party | 26 February 2026 |
| Gosport | Dame Caroline Dinenage | Conservative | 6 May 2010 |
| Gower | Tonia Antoniazzi | Labour | 8 June 2017 |
| Grantham and Bourne | Gareth Davies | Conservative | 12 December 2019 |
| Gravesham | Dr Lauren Sullivan | Labour | 4 July 2024 |
| Great Grimsby and Cleethorpes | Melanie Onn | Labour | 4 July 2024 |
| Great Yarmouth | Rupert Lowe | Restore Britain | 4 July 2024 |
| Greenwich and Woolwich | Matthew Pennycook | Labour | 7 May 2015 |
| Guildford | Zöe Franklin | Liberal Democrat | 4 July 2024 |