| Alen Mrzlečki | |
| Fullname: | Alen Mrzlečki |
| Birth Date: | 13 May 1974 |
| Birth Place: | Bjelovar, SFR Yugoslavia |
| Height: | 1.91 m |
| Position: | Defender |
| Years1: | 1995–1998 |
| Years2: | 1998–1999 |
| Years3: | 1999–2000 |
| Years4: | 2001 |
| Years5: | 2001–2002 |
| Years6: | 2002–2003 |
| Years7: | 2003–2004 |
| Years8: | 2006–2007 |
| Years9: | 2007–2011 |
| Years10: | 2011–2012 |
| Years11: | 2012–2014 |
| Clubs1: | Mladost 127 |
| Clubs2: | Hajduk Split |
| Clubs3: | Šibenik |
| Clubs4: | Harelbeke |
| Clubs5: | Lokeren |
| Clubs6: | KV Mechelen |
| Clubs7: | Bjelovar |
| Clubs8: | NK Pitomača |
| Clubs9: | Vrbovec |
| Clubs10: | Bjelovar |
| Clubs11: | Croatia Grabrovnica |
| Caps1: | 78 |
| Caps2: | 15 |
| Caps3: | 33 |
| Caps4: | 15 |
| Caps5: | 0 |
| Caps6: | 11 |
| Caps7: | 21 |
| Caps9: | 127 |
| Caps10: | 28 |
| Goals1: | 8 |
| Goals2: | 1 |
| Goals3: | 0 |
| Goals4: | 1 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals9: | 9 |
| Goals10: | 1 |
| Manageryears1: | 2015-2016 |
| Managerclubs1: | Croatia Grabrovnica |
| Manageryears2: | 2016-2017 |
| Managerclubs2: | NK Pitomača |
| Manageryears3: | 2017-2018 |
| Managerclubs3: | Bjelovar |
| Manageryears4: | 2018-2021 |
| Managerclubs4: | Bjelovar (youth) |
| Pcupdate: | 30 December 2008 |
Alen Mrzlečki (born 13 May 1974, in Bjelovar) is a Croatian football manager and retired player who last played for NK Bjelovar.
Mrzlečki started his career at Mladost 2014, then played for Hajduk and Šibenik. He spent several years abroad playing for Belgian clubs Harelbeke, Lokeren, Mechelen, and upon his return to Croatia he played again for Bjelovar, Pitomača and Vrbovec. He ended his playing career in 2011 with a game in Suhopolje.[1]
Mrzlečki was dismissed as manager of hometown club Bjelovar in October 2018.[2] In November 2021 he was relieved of his duties again by the club, this time while in charge of the club's junior team.[3]
Mrzlečki has been married to TV presenter Marta Šimić since 2000 and the couple have a son named Adam and live between Bjelovar and Zagreb.[4]