| Cosmin Năstăsie | |
| Fullname: | Cosmin Alin Năstăsie |
| Birth Date: | 22 June 1983 |
| Birth Place: | Drăgășani, Romania |
| Position: | Winger |
| Youthyears1: | 2002–2003 |
| Youthclubs1: | Internaţional |
| Years1: | 2003–2011 |
| Caps1: | 203 |
| Goals1: | 29 |
| Years2: | 2004–2005 |
| Clubs2: | → Mioveni (loan) |
| Caps2: | 7 |
| Goals2: | 5 |
| Years3: | 2010–2011 |
| Clubs3: | → Brașov (loan) |
| Caps3: | 13 |
| Goals3: | 0 |
| Years4: | 2012–2019 |
| Clubs4: | Mioveni |
| Caps4: | 187 |
| Goals4: | 57 |
| Manageryears1: | 2023– |
| Managerclubs1: | Unirea Bascov U-17 |
| Totalcaps: | 410 |
| Totalgoals: | 91 |
| Pcupdate: | 9 December 2019 |
| Ntupdate: | 22 May 2011 |
Cosmin Alin Năstăsie (born 22 June 1983) is a Romanian former footballer who played as a winger for FC Argeș Pitești, CS Mioveni and FC Brașov.