| Iustin Popescu | |
| Fullname: | Iustin Alin Popescu |
| Birth Date: | 1 September 1993 |
| Birth Place: | Craiova, Romania |
| Position: | Goalkeeper |
| Height: | 1.84 m |
| Currentclub: | Oțelul Galați |
| Clubnumber: | 32 |
| Youthyears1: | –2010 |
| Youthclubs1: | Școala de Fotbal Gheorghe Popescu |
| Youthyears2: | 2010–2012 |
| Youthclubs2: | Chindia Târgoviște |
| Years1: | 2012–2014 |
| Years2: | 2014 |
| Caps2: | 15 |
| Goals2: | 0 |
| Years3: | 2015–2018 |
| Clubs3: | Dinamo București |
| Caps3: | 1 |
| Goals3: | 0 |
| Years4: | 2015 |
| Clubs4: | → Berceni (loan) |
| Caps4: | 9 |
| Goals4: | 0 |
| Years5: | 2016 |
| Clubs5: | → Petrolul Ploiești (loan) |
| Caps5: | 2 |
| Goals5: | 0 |
| Years6: | 2016 |
| Clubs6: | → Unirea Tărlungeni (loan) |
| Caps6: | 11 |
| Goals6: | 0 |
| Years7: | 2017–2018 |
| Clubs7: | → Chindia Târgoviște (loan) |
| Caps7: | 27 |
| Goals7: | 0 |
| Years8: | 2018–2020 |
| Caps8: | 4 |
| Goals8: | 0 |
| Years9: | 2020–2023 |
| Clubs9: | Mioveni |
| Caps9: | 63 |
| Goals9: | 0 |
| Years10: | 2023 |
| Clubs10: | Concordia Chiajna |
| Caps10: | 4 |
| Goals10: | 0 |
| Years11: | 2023–2024 |
| Caps11: | 11 |
| Goals11: | 0 |
| Years12: | 2024– |
| Clubs12: | Oțelul Galați |
| Caps12: | 5 |
| Goals12: | 0 |
| Nationalyears1: | 2010 |
| Nationalteam1: | Romania U17 |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Pcupdate: | 10 August 2024 |
Iustin Alin Popescu (born 1 September 1993) is a Romanian professional footballer who plays as a goalkeeper for Liga I club Oțelul Galați.[1]