| 2018 NRL Finals Series | |
|---|---|
| Duration | 7 Sep – 30 Sep 2018 |
| Teams | 8 |
| Premiers |  Sydney Roosters (14th title) |
| Minor premiers | Sydney Roosters (20th title) |
| Matches played | 9 |
| Points scored | 332 |
| Highest attendance | 82,688 (Sydney vs Melbourne Grand Final) |
| Lowest attendance | 17,168 (Penrith vs New Zealand Elimination Final) |
| Average attendance | 36,382 |
| Attendance | 327,446 |
| Broadcast partners | Nine Network Fox League |
| Top points scorer(s) |  Adam Reynolds (25) |
| Top try-scorer(s) |  Tariq Sims (3) |
The 2018 NRL finals series determines the winner of the 2018 National Rugby League season. The series ran over four weekends in September 2018, culminating with the 2018 NRL Grand Final at Sydney's ANZ Stadium on 30 September 2018.
The top eight teams from the 2018 NRL Season qualified for the finals series. NRL finals series have been played under the current format since 2012. The qualifying teams are Melbourne, Sydney, South Sydney, Cronulla-Sutherland, Penrith, Brisbane, St George Illawarra and New Zealand.