| Ekkachai Rittipan | |
| Fullname: | Ekkachai Rittipan |
| Birth Date: | 1990 5, df=yes |
| Birth Place: | Surat Thani, Thailand |
| Clubnumber: | 20 |
| Position: | Winger |
| Youthyears1: | 2007–2008 |
| Years1: | 2008–2011 |
| Clubs1: | Sriracha |
| Caps1: | 39 |
| Goals1: | 16 |
| Years2: | 2012–2013 |
| Clubs2: | TOT |
| Caps2: | 40 |
| Goals2: | 5 |
| Years3: | 2014 |
| Clubs3: | Army United |
| Caps3: | 14 |
| Goals3: | 3 |
| Years4: | 2015 |
| Clubs4: | Suphanburi |
| Caps4: | 12 |
| Goals4: | 1 |
| Years5: | 2015 |
| Clubs5: | → BEC Tero Sasana (loan) |
| Caps5: | 8 |
| Goals5: | 3 |
| Years6: | 2016–2018 |
| Caps6: | 5 |
| Goals6: | 0 |
| Years7: | 2016 |
| Clubs7: | → Chiangrai United (loan) |
| Caps7: | 8 |
| Goals7: | 0 |
| Years8: | 2017 |
| Clubs8: | → Nakhon Ratchasima (loan) |
| Caps8: | 10 |
| Goals8: | 0 |
| Years9: | 2018 |
| Caps9: | 29 |
| Goals9: | 4 |
| Years10: | 2019– |
| Caps10: | 2 |
| Goals10: | 0 |
| Years11: | 2019 |
| Clubs11: | → Trat (loan) |
| Caps11: | 3 |
| Goals11: | 0 |
| Years12: | 2020– |
| Nationalyears1: | 2008–2009 |
| Nationalteam1: | Thailand U19 |
| Club-Update: | 05:02, 15 October 2018 (UTC) |
Ekkachai Rittipan (Thai: เอกชัย ฤทธิพันธ์, born May 23, 1990), simply known as Puen (Thai: ปืน), is a Thai professional footballer who plays as a winger for Thai League 2 club Ayutthaya United.