| Boštjan Frelih | |
| Birth Date: | 10 February 1993 |
| Birth Place: | Ljubljana, Slovenia |
| Height: | 1.90 m[1] |
| Position: | Left-back, centre-back |
| Currentclub: | Žiri |
| Youthyears1: | –2012 |
| Youthclubs1: | Gorica |
| Years1: | 2012–2014 |
| Caps1: | 8 |
| Goals1: | 1 |
| Clubs1: | Gorica |
| Years2: | 2013 |
| Caps2: | 22 |
| Goals2: | 5 |
| Clubs2: | → Brda (loan) |
| Years3: | 2014 |
| Caps3: | 10 |
| Goals3: | 2 |
| Clubs3: | → Adria (loan) |
| Years4: | 2014–2015 |
| Caps4: | 20 |
| Goals4: | 0 |
| Clubs4: | Krško |
| Years5: | 2015–2016 |
| Caps5: | 5 |
| Goals5: | 0 |
| Clubs5: | Zbrojovka Brno |
| Years6: | 2016 |
| Caps6: | 1 |
| Goals6: | 0 |
| Clubs6: | → Inter Zaprešić (loan) |
| Years7: | 2016–2017 |
| Caps7: | 6 |
| Goals7: | 0 |
| Clubs7: | Drava Ptuj |
| Years8: | 2017–2018 |
| Caps8: | 11 |
| Goals8: | 1 |
| Clubs8: | AŠK Bravo |
| Years9: | 2018 |
| Caps9: | 9 |
| Goals9: | 1 |
| Clubs9: | Tabor Sežana |
| Years10: | 2018 |
| Caps10: | 11 |
| Goals10: | 0 |
| Clubs10: | Bilje |
| Years11: | 2019– |
| Caps11: | 75 |
| Goals11: | 16 |
| Clubs11: | Žiri |
| Club-Update: | 20 August 2023 |
Boštjan Frelih (born 10 February 1993) is a Slovenian footballer who plays as a defender for Žiri.