| Club: | Mjøndalen |
| Season: | 2015 |
| Manager: | Vegard Hansen |
| Mgrtitle: | Manager |
| Stadium: | Isachsen Stadion |
| League: | Tippeligaen |
| League Result: | 15th (Relegated) |
| Cup1: | Norwegian Cup |
| Cup1 Result: | Quarter-final vs Rosenborg |
| League Topscorer: | Rhett Bernstein (5) |
| Season Topscorer: | Two Players (6) |
| Prevseason: | 2014 |
| Nextseason: | 2016 |
| Leftarm1: | 833C12 |
| Body1: | 833C12 |
| Rightarm1: | 833C12 |
| Shorts1: | FFFFFF |
| Socks1: | 833C12 |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | 833C12 |
The 2015 season is Mjøndalen's 105th season, and their first Tippeligaen season for 22 years. It is their 10th season with Vegard Hansen as manager, during which they will compete in the Norwegian Cup as well as the Tippeligaen.
See main article: article and List of Norwegian football transfers winter 2014–15. In:[2] [3] [4] Out:
See main article: article and List of Norwegian football transfers summer 2015. In:[5] [6] [7] [8] [9] [10] [11] Out: [12] [8] [13] [14] [15] [16] [17]
See main article: article and 2015 Tippeligaen.
See main article: article and 2015 Norwegian Football Cup.
|-|colspan="14"|Players away from Mjøndalen on loan:|-|colspan="14"|Players who appeared for Mjøndalen no longer at the club:|}
| width=60 | Place | width=60 | Position | width=60 | Nation | width=60 | Number | width=200 | Name | width=80 | Tippeligaen | width=100 | Norwegian Cup | width=80 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | MF |  | 11 | Christian Gauseth | 4 | 2 | 6 | ||||||||
| FW | 7 | Sanel Kapidžić | 4 | 2 | 6 | ||||||||||
| 3 | DF |  | 18 | Rhett Bernstein | 5 | 0 | 5 | ||||||||
| MF | | 10 | Erik Midtgarden | 4 | 1 | 5 | |||||||||
| FW | 20 | Alagie Sosseh | 1 | 4 | 5 | ||||||||||
| 6 | DF | | 22 | Morten Sundli | 4 | 0 | 4 | ||||||||
| MF | | 15 | Stian Aasmundsen | 3 | 1 | 4 | |||||||||
| DF | | 3 | Joachim Solberg Olsen | 1 | 3 | 4 | |||||||||
| 9 | MF | | 16 | Mads Gundersen | 2 | 0 | 2 | ||||||||
| MF | | 21 | Magnus Sylling Olsen | 2 | 0 | 2 | |||||||||
| MF | | 19 | Tokmac Nguen | 2 | 0 | 2 | |||||||||
| FW | | 23 | Tim André Nilsen | 1 | 1 | 2 | |||||||||
| MF | | 6 | Bjarne Kortgaard Ingebretsen | 0 | 2 | 2 | |||||||||
| 14 | MF | | 9 | Mads Hansen | 1 | 0 | 1 | ||||||||
| DF | | 2 | Ulrik Arneberg | 1 | 0 | 1 | |||||||||
| MF |  | 6 | Craig Henderson | 1 | 0 | 1 | |||||||||
| FW | | 17 | Amahl Pellegrino | 1 | 0 | 1 | |||||||||
| FW | | 23 | Erik Hurtado | 1 | 0 | 1 | |||||||||
| Own goal | 0 | 1 | 1 | ||||||||||||
| TOTALS | 38 | 17 | 55 | ||||||||||||
| Number | Nation | Position | Name | Tippeligaen | Norwegian Cup | Total | |||||
| width=60 style="background: #FFEE99" | width=60 style="background: #FF8888" | width=60 style="background: #FFEE99" | width=60 style="background: #FF8888" | width=60 style="background: #FFEE99" | width=60 style="background: #FF8888" | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | | GK | Ivar Andreas Forn | 1 | 0 | 0 | 0 | 1 | 0 | ||
| 2 | | DF | Ulrik Arneberg | 4 | 0 | 0 | 0 | 4 | 0 | ||
| 3 | | DF | Joachim Solberg Olsen | 6 | 0 | 1 | 0 | 7 | 0 | ||
| 4 | | DF | Martin Strange | 1 | 0 | 0 | 0 | 1 | 0 | ||
| 5 | | DF | Karanveer Grewal | 2 | 1 | 0 | 0 | 2 | 1 | ||
| 6 | | MF | Michael Stilson | 1 | 0 | 0 | 0 | 1 | 0 | ||
| 7 | FW | Sanel Kapidžić | 4 | 0 | 0 | 0 | 4 | 0 | |||
| 9 | | MF | Mads Hansen | 0 | 0 | 2 | 0 | 2 | 0 | ||
| 10 | | MF | Erik Midtgarden | 1 | 0 | 0 | 0 | 1 | 0 | ||
| 11 | | MF | Christian Gauseth | 5 | 0 | 1 | 0 | 6 | 0 | ||
| 15 | | MF | Stian Aasmundsen | 7 | 1 | 0 | 0 | 7 | 1 | ||
| 16 | | MF | Mads Gundersen | 4 | 0 | 0 | 0 | 4 | 0 | ||
| 18 | | DF | Rhett Bernstein | 1 | 0 | 0 | 1 | 1 | 1 | ||
| 20 | FW | Alagie Sosseh | 2 | 0 | 0 | 0 | 2 | 0 | |||
| 21 | | MF | Magnus Sylling Olsen | 7 | 0 | 0 | 0 | 7 | 0 | ||
| 22 | | DF | Morten Sundli | 5 | 0 | 0 | 0 | 5 | 0 | ||
| 23 | | FW | Tim André Nilsen | 0 | 0 | 1 | 0 | 1 | 0 | ||
| 23 | | FW | Erik Hurtado | 1 | 0 | 0 | 0 | 1 | 0 | ||
| 24 |  | MF | Amidou Diop | 1 | 0 | 1 | 0 | 2 | 0 | ||
| TOTALS | 53 | 2 | 6 | 1 | 59 | 3 | |||||