An election to the 58th Parliament of the United Kingdom for the constituency area of Eastleigh, held as part of the general election on 12 December 2019.
Conservative hold by Paul Holmes with a majority of 15,607 - 26.5% - on a turnout of 70.3%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| HOLMES, Paul | Con | 32,690 | 55.4% | 5.0% |
| MURPHY, Lynda | LD | 17,083 | 29.0% | 3.3% |
| JORDAN, Sam | Lab | 7,559 | 12.8% | -7.2% |
| MELDRUM, Ron | Green | 1,639 | 2.8% | 1.5% |
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.
An electorate of 83,880, having a valid vote count of 58,971 and an invalid vote count of 186.
Result declared at 02:33 on 13 December 2019.