An election to the 57th Parliament of the United Kingdom for the constituency area of Luton South, held as part of the general election on 8 June 2017.
Labour hold by Gavin Shuker with a majority of 13,925 - 30.2% - on a turnout of 68.7%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| SHUKER, Gavin | Lab / Co-op | 28,804 | 62.4% | 18.2% |
| RUSSELL, Dean | Con | 14,879 | 32.3% | 1.6% |
| STRANGE, Andrew | LD | 1,056 | 2.3% | -5.3% |
| BHARDWHAJ, Ujjawal | UKIP | 795 | 1.7% | -10.4% |
| SCHEIMANN, Marc | Green | 439 | 1.0% | -2.0% |
| ALI, Abid | Ind | 160 | 0.3% | - |
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 67,188, having a valid vote count of 46,133 and an invalid vote count of 100.
Result declared at 04:06 on 9 June 2017.