An election to the 57th Parliament of the United Kingdom for the constituency area of Rhondda, held as part of the general election on 8 June 2017.
Labour hold by Chris Bryant with a majority of 13,746 - 41.7% - on a turnout of 65.2%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| BRYANT, Chris | Lab | 21,096 | 64.1% | 13.4% |
| CENNARD, Branwen | PC | 7,350 | 22.3% | -4.7% |
| CROSBIE, Virginia | Con | 3,333 | 10.1% | 3.4% |
| KENRICK, Janet | UKIP | 880 | 2.7% | -10.0% |
| ROBERTS, Karen | LD | 277 | 0.8% | -0.7% |
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 50,514, having a valid vote count of 32,936 and an invalid vote count of 60.
Result declared at 02:20 on 9 June 2017.