| Year: | 2015 |
| Stage1champion: | Chiba Lotte Marines (2) |
| Stage1champion Games: | 73–69–1 (.514), 18.5 GB |
| Stage1runnerup: | Hokkaido Nippon-Ham Fighters (1) |
| Stage1runnerup Games: | 79–62–2 (.560), 12 GB |
| Date1: | October 10–12 |
| Stage2champion: | Fukuoka SoftBank Hawks (4) |
| Stage2champion Games: | 90–49–4 (.647), 12 GA |
| Stage2runnerup: | Chiba Lotte Marines (0) |
| Stage2runnerup Manager: | Tsutomu Ito |
| Stage2runnerup Games: | 73–69–1 (.514), 18.5 GB |
| Date2: | October 14–16 |
| Mvp: | Seiichi Uchikawa (Hawks) |
| Previous Series: | 2014 Pacific League Climax Series |
| Previous Year: | 2014 |
| Next Series: | 2016 Pacific League Climax Series |
| Next Year: | 2016 |
The 2015 Pacific League Climax Series (PLCS) consisted of two consecutive series, Stage 1 being a best-of-three series and Stage 2 being a best-of-six with the top seed being awarded a one-win advantage. The winner of the series advanced to the 2015 Japan Series, where they competed against the 2015 Central League Climax Series winner. The top three regular-season finishers played in the two series. The PLCS began on with the first game of Stage 1 on October 10 and ended with the final game of Stage 2 on October 16.