2017–18 Scarlets season
The 2017–18 season is the 15th season in the history of the Scarlets, a Welsh rugby union regional side based in Llanelli, Carmarthenshire. This season, they are competing in the newly revamped Pro14 as the defending champions, the Rugby Champions Cup and the Anglo-Welsh Cup. This season, Welsh international Liam Williams and Canadian international DTH van der Merwe departed the club, while Welsh internationals Leigh Halfpenny and Tom Prydie and Australia Sevens international Paul Asquith were among the new arrivals.
Pre-season and friendlies
| Date | Opponents | H / A | Result F–A | Scorers | Attendance |
| 12 August 2017 | Scarlets Premiership Select | H | Tries: Asquith 4' c, 56' c, 70' c, Conbeer 7' c, 42' m, Sh. Evans 19' c, Penalty try 30', Grabham 38' c, M. Williams 47' c, Boyde 49' c, D. Hughes 53' c, 76' c Conversions: R. Jones 4', 7', 19', 38', 47', 49', 52', 56', 70', 76', | ||
| 19 August 2017 | Bristol | A | Tries: M. Williams 8' m, 28' c, Elias 64' c, St. Evans 73' c, Patchell 80' c Conversions: D. Jones 28', Patchell 64', 73', 80' | ||
| 25 August 2017 | Gloucester | A | Tries: G. Davies 37' c, R. Evans 77' c, A. Davies 79' c Conversions: Patchell 37', R. Jones 77', 79' |
Although advertised as a home game, the match against the Premiership Select was played at Llandovery's Church Bank
Pro 14
Fixtures
Table
;Conference B| Pos | Team | Pld | W | D | L | F | A | PD | BP | Pts |
| 1 |  Leinster | 21 | 14 | 1 | 6 | 601 | 374 | +227 | 12 | 70 |
| 2 |  Scarlets | 21 | 14 | 1 | 6 | 528 | 365 | +163 | 12 | 70 |
| 3 |  Edinburgh | 21 | 15 | 0 | 6 | 494 | 375 | +119 | 8 | 68 |