| Hans Kleer | |
| Birth Date: | 4 September 1969 |
| Birth Place: | Vienna, Austria |
| Height: | 1.81 m |
| Position: | Defender |
| Currentclub: | FCM Flyeralarm Traiskirchen (manager) |
| Clubs1: | Austria Wien |
| Years2: | 1989–1992 |
| Clubs2: | VfB Mödling |
| Years3: | 1992–1995 |
| Clubs3: | First Vienna FC |
| Years4: | 1995–1999 |
| Clubs4: | SC Austria Lustenau |
| Caps4: | 93 |
| Goals4: | 9 |
| Years5: | 1999–2000 |
| Clubs5: | SKN St. Pölten |
| Caps5: | 19 |
| Goals5: | 2 |
| Years6: | 2000 |
| Clubs6: | SV Hundsheim |
| Caps6: | 6 |
| Goals6: | 1 |
| Years7: | 2000–2001 |
| Clubs7: | 1. Simmeringer SC |
| Caps7: | 5 |
| Goals7: | 0 |
| Years8: | 2001–2002 |
| Clubs8: | SV Donau |
| Years9: | 2002 |
| Clubs9: | SC Zwettl |
| Caps9: | 14 |
| Goals9: | 3 |
| Years10: | 2002–2006 |
| Clubs10: | SV Donau |
| Caps10: | 32 |
| Goals10: | 1 |
| Years11: | 2006–2007 |
| Clubs11: | SV Gerasdorf/Stammersdorf |
| Years12: | 2010–2013 |
| Clubs12: | CWF Amateure 99 |
| Nationalyears1: | 1990–1991 |
| Nationalteam1: | Austria U21 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
| Manageryears1: | 2004–2005 |
| Managerclubs1: | SV Donau |
| Manageryears2: | 2008–2009 |
| Managerclubs2: | Austria Lustenau |
| Manageryears3: | 2009–2010 |
| Managerclubs3: | Wiener SC |
| Manageryears4: | 2011 |
| Managerclubs4: | FC Tulln |
| Manageryears5: | 2011–2015 |
| Managerclubs5: | Floridsdorfer AC |
| Manageryears6: | 2015–2016 |
| Managerclubs6: | SV Horn |
| Manageryears7: | 2016–2018 |
| Managerclubs7: | First Vienna |
| Manageryears8: | 2018–2019 |
| Managerclubs8: | Karabakh Wien |
| Manageryears9: | 2019–2020 |
| Managerclubs9: | SV Horn |
| Manageryears10: | 2020–2022 |
| Managerclubs10: | SV Stripfing |
| Manageryears11: | 2022– |
| Managerclubs11: | FCM Flyeralarm Traiskirchen |
Johann "Hans" Kleer (born 4 September 1969) is an Austrian professional football manager and former player who is the manager of Austrian Regionalliga club FCM Flyeralarm Traiskirchen. He has previously managed clubs including Wiener SC, Floridsdorfer AC and Austria Lustenau.