| István Hamar | |
| Fullname: | István Hamar |
| Height: | 1.81 m |
| Birth Date: | 1970 10, df=yes |
| Birth Place: | Budapest, Hungary |
| Currentclub: | Vecsés FC |
| Position: | Left midfielder |
| Years1: | 1989–1992 |
| Years2: | 1992–1996 |
| Years3: | 1996–1997 |
| Years4: | 1997 |
| Years5: | 1997 |
| Years6: | 1997–2000 |
| Years7: | 2000–2001 |
| Years8: | 2001–2003 |
| Years9: | 2003–2004 |
| Years10: | 2007–2009 |
| Years11: | 2009 |
| Years12: | 2010 |
| Clubs12: | Ladánybene FC |
| Caps1: | 23 |
| Goals1: | 3 |
| Caps2: | 77 |
| Goals2: | 17 |
| Caps3: | 28 |
| Goals3: | 8 |
| Caps4: | 13 |
| Goals4: | 3 |
| Caps5: | 2 |
| Goals5: | 0 |
| Caps6: | 118 |
| Goals6: | 21 |
| Caps7: | 12 |
| Goals7: | 2 |
| Caps8: | 29 |
| Goals8: | 6 |
| Caps9: | 20 |
| Goals9: | 4 |
| Caps10: | 22 |
| Goals10: | 2 |
| Caps11: | 7 |
| Goals11: | 2 |
| Nationalyears1: | 1993–2001 |
| Nationalteam1: | Hungary |
| Nationalcaps1: | 25 |
| Nationalgoals1: | 4 |
István Hamar (born 6 October 1970 in Budapest) is a Hungarian former football player. In addition to playing for professional teams in Hungary and Israel, he played for the Hungary national team.