| Jiří Krejčí | |
| Birth Date: | 22 March 1986 |
| Birth Place: | Jablonec, Czechoslovakia |
| Height: | 1.91 m[1] |
| Position: | Centre back |
| Youthyears1: | 1994–2004 |
| Youthclubs1: | Sparta Prague |
| Years1: | 2004–2006 |
| Clubs1: | Chmel Blšany |
| Caps1: | 13 |
| Goals1: | 0 |
| Years2: | 2006–2007 |
| Clubs2: | Baník Most |
| Caps2: | 15 |
| Goals2: | 0 |
| Years3: | 2007–2010 |
| Clubs3: | Jablonec 97 |
| Caps3: | 54 |
| Goals3: | 3 |
| Years4: | 2010–2011 |
| Caps4: | 0 |
| Goals4: | 0 |
| Years5: | 2011–2012 |
| Clubs5: | Příbram |
| Caps5: | 27 |
| Goals5: | 2 |
| Years6: | 2012–2013 |
| Clubs6: | Pécsi MFC |
| Caps6: | 20 |
| Goals6: | 2 |
| Years7: | 2013–2018 |
| Caps7: | 116 |
| Goals7: | 3 |
| Years8: | 2018–2019 |
| Caps8: | 38 |
| Goals8: | 1 |
| Nationalyears1: | 2003 |
| Nationalteam1: | Czech Republic U18 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
Jiří Krejčí (born 22 March 1986) is a retired footballer from Czech Republic.
Krejčí begun his youth career at Sparta Prague. Then he spent the next years playing for Chmel Blšany and Baník Most.
Young Krejčí signed Jablonec in 2007. He became regular, finishing as runner-up in 2009–2010 season. Krejčí was the best centre back of Jablonec, but he refused to sign a new contract.
Krejčí made the big step of his career signing for Romanian giants FC Politehnica Timișoara on 15 October for five years.[2] He was handed the number 3. At his presentation at press conference, said : "I am very happy to be here, is an important step in my career. Poli Timișoara is a well known name in the Czech Republic, thanks to Dušan Uhrin. I hope to help the team to back European Cups in the summer. Krejčí left the team on 18 June 2011 after he failed to make an impression and played just for reserves team.