| Mario Šoštarič | |
| Nationality: | Slovenian/Croatian[1] |
| Birth Date: | 25 November 1992 |
| Birth Place: | Slovenj Gradec, Slovenia[2] |
| Height: | 1.93 m |
| Position: | Right wing |
| Currentclub: | SC Pick Szeged |
| Clubnumber: | 24 |
| Years1: | 2009–2011 |
| Clubs1: | RK Gorenje Velenje |
| Years2: | 2011–2013 |
| Clubs2: | RK Maribor Branik |
| Years3: | 2013–2016 |
| Clubs3: | RK Gorenje Velenje |
| Years4: | 2016– |
| Clubs4: | SC Pick Szeged |
| Nationalyears1: | 2012–2020 |
| Nationalteam1: | Slovenia[3] |
| Nationalcaps1: | 36 |
| Nationalgoals1: | 69 |
| Nationalyears2: | 2023– |
| Nationalteam2: | Croatia |
Mario Šoštarič (born 25 November 1992) is a professional handball player who plays for SC Pick Szeged. Born in Slovenia, he has represented both Slovenia and Croatia internationally.
Šoštarič started his career with RK Gorenje Velenje, and later played for RK Maribor Branik.
SC Pick Szeged