Libertarian Party By-elections
| Election | Constituency | Candidate | Vote count | Vote share | Position | 
| 14 June 2018 | Lewisham East | Sean Edward Finch | 38 | 0.2% | 11th | 
| Election | Constituency | Candidate | Vote count | Vote share | Position | 
| 14 June 2018 | Lewisham East | Sean Edward Finch | 38 | 0.2% | 11th |