| Clubname: | Pärnu JK Poseidon |
| Fullname: | Pärnu Jalgpalliklubi Poseidon |
| Founded: | 2013 |
| Manager: | Martin Kuldmägi |
| Position: | III liiga West, 4th |
| Website: | https://jkposeidon.ee/ |
| Pattern B1: | _bluestripes |
| Leftarm1: | 4DC1EC |
| Body1: | 4DC1EC |
| Rightarm1: | 4DC1EC |
| Shorts1: | 1528C9 |
| Socks1: | 4DC1EC |
| Pattern La2: | _lightbluestripes |
| Pattern B2: | _lightbluestripes |
| Pattern Ra2: | _lightbluestripes |
| Shorts2: | 4DC1EC |
| Socks2: | FFFFFF |
Pärnu JK Poseidon is a football club based in Pärnu, Estonia.
It has a reserve team, Pärnu JK Poseidon II, that currently plays in the IV Liiga.
| width=60px | Season | width=80px | Division | width=30px | Pos | width=30px | Teams | width=30px | Pld | width=30px | W | width=30px | D | width=30px | L | width=30px | GF | width=30px | GA | width=30px | GD | width=30px | Pts | Top Goalscorer | Estonian Cup | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014 | IV liiga S | 3 | 9 | 16 | 9 | 3 | 4 | 39 | 30 | +9 | 30 | Lauri Lilleste (14) | First round | |||||||||||||
| 2015 | IV liiga W | 1 | 10 | 18 | 13 | 1 | 4 | 58 | 32 | +26 | 40 | Lauri Lilleste (22) | Second round | |||||||||||||
| 2016 | III liiga W | 6 | 12 | 22 | 10 | 2 | 10 | 47 | 49 | -2 | 32 | Joonas Einfeldt and Ülari Tohver (13) | Third round | |||||||||||||
| 2017 | 1 | 12 | 22 | 16 | 5 | 1 | 74 | 20 | +54 | 53 | Madis Tammsaar (13) | Third round | ||||||||||||||
| 2018 | II liiga S/W | 7 | 14 | 26 | 10 | 3 | 13 | 45 | 62 | -17 | 33 | Joonas Einfeldt (9) | Third round | |||||||||||||
| 2019 | 12 | 14 | 26 | 8 | 2 | 16 | 47 | 80 | -33 | 26 | Artur Šalda (23) | Second round |