| Željko Polak | |
| Fullname: | Željko Polak |
| Birth Date: | 9 March 1976 |
| Birth Place: | SFR Yugoslavia |
| Position: | Forward |
| Years1: | 1989–1991 |
| Years3: | 1998–1999 |
| Years4: | 1998–1999 |
| Years5: | 1999–2000 |
| Years6: | 2000–2001 |
| Years7: | 2001–2004 |
| Years8: | 2004–2006 |
| Years9: | 2006–2009 |
| Clubs4: | → Palilulac Beograd (loan) |
| Clubs9: | Mladost Lučani |
| Caps1: | 23 |
| Goals1: | 1 |
| Caps6: | 1 |
| Goals6: | 0 |
| Caps7: | 70 |
| Goals7: | 6 |
| Caps8: | 52 |
| Goals8: | 1 |
| Caps9: | 60 |
| Goals9: | 2 |
Željko Polak (Serbian Cyrillic: Жељко Полак; born 9 March 1976) is a retired Bosnian-Herzegovinian footballer.
After playing in Serbian clubs such as FK Mačva Šabac, FK Milicionar, FK Palilulac Beograd and FK Radnički Beograd, in 2000, he moved to Germany to play in FC Carl Zeiss Jena. After not getting many chances to play, he returned and played in Serbian SuperLiga and Serbian First League with Radnički Beograd, FK Bežanija and FK Mladost Lučani.