| Mario Tadejević | |
| Birth Date: | 1989 8, df=yes |
| Birth Place: | Rijeka, SFR Yugoslavia |
| Position: | Left back |
| Currentclub: | Orijent |
| Clubnumber: | 28 |
| Youthyears1: | 2001–2008 |
| Youthclubs1: | Rijeka |
| Years1: | 2007–2012 |
| Clubs1: | Rijeka |
| Caps1: | 37 |
| Goals1: | 2 |
| Years2: | 2010–2011 |
| Clubs2: | → Pomorac (loan) |
| Caps2: | 10 |
| Goals2: | 0 |
| Years3: | 2012–2014 |
| Clubs3: | Sarajevo |
| Caps3: | 46 |
| Goals3: | 3 |
| Years4: | 2015 |
| Clubs4: | Pécs |
| Caps4: | 4 |
| Goals4: | 0 |
| Years5: | 2015–2016 |
| Caps5: | 7 |
| Goals5: | 0 |
| Years6: | 2016 |
| Clubs6: | Krk |
| Caps6: | 4 |
| Goals6: | 0 |
| Years7: | 2016–2018 |
| Caps7: | 61 |
| Goals7: | 0 |
| Years8: | 2019– |
| Clubs8: | Orijent |
| Caps8: | 112 |
| Goals8: | 11 |
| Club-Update: | 17 August 2024 |
Mario Tadejević (born 28 August 1989) is a Croatian football defender who plays for Orijent in the Croatian Second Football League.
He started his professional career in 2007 with Rijeka in Croatia’s Prva HNL and was with the club until 2012. This included a loan to Pomorac in Croatia's Druga HNL during one of the seasons.[1] [2] He later had a three-year spell in Iceland with Fjölnir.[3]