| Piyachat Srimarueang | |
| Fullname: | Piyachat Srimarueang |
| Birth Date: | 11 January 1989 |
| Birth Place: | Sisaket, Thailand |
| Youthyears1: | 2004–2007 |
| Youthclubs1: | Ratwinit Bangkaeo School |
| Years1: | 2007–2010 |
| Caps1: | 10 |
| Goals1: | 2 |
| Years2: | 2009–2010 |
| Clubs2: | → Prachinburi (loan) |
| Caps2: | 18 |
| Goals2: | 0 |
| Years3: | 2011–2012 |
| Caps3: | 34 |
| Goals3: | 0 |
| Years4: | 2013 |
| Clubs4: | Trat |
| Caps4: | 9 |
| Goals4: | 0 |
| Years5: | 2013–2014 |
| Caps5: | 41 |
| Goals5: | 8 |
| Years6: | 2015 |
| Clubs6: | Saraburi |
| Caps6: | 27 |
| Goals6: | 1 |
| Years7: | 2016 |
| Clubs7: | Sukhothai |
| Caps7: | 18 |
| Goals7: | 4 |
| Years8: | 2016–2017 |
| Clubs8: | Port |
| Caps8: | 24 |
| Goals8: | 1 |
Piyachat Srimarueang (th|ปิยะชาติ ศรีมะเรือง, born January 11, 1989), is a Thai retired professional footballer who played as an attacking midfielder.