| Willian Popp | |
| Fullname: | Willian Popp |
| Height: | 1.79 m |
| Birth Date: | 13 April 1994 |
| Birth Place: | Joinville, Brazil |
| Currentclub: | Shanghai Port (on loan from Muangthong United) |
| Clubnumber: | 30 |
| Position: | Winger, forward |
| Youthclubs1: | Joinville |
| Years1: | 2014–2016 |
| Clubs1: | Joinville |
| Caps1: | 52 |
| Goals1: | 2 |
| Years2: | 2014 |
| Clubs2: | → Mogi Mirim (loan) |
| Caps2: | 7 |
| Goals2: | 1 |
| Years3: | 2016 |
| Clubs3: | Busan IPark |
| Caps3: | 38 |
| Goals3: | 18 |
| Years4: | 2017 |
| Clubs4: | Avispa Fukuoka |
| Caps4: | 19 |
| Goals4: | 0 |
| Years5: | 2018 |
| Clubs5: | Bucheon FC 1995 |
| Caps5: | 30 |
| Goals5: | 10 |
| Years6: | 2019 |
| Clubs6: | Figueirense |
| Caps6: | 30 |
| Goals6: | 8 |
| Years7: | 2019 |
| Clubs7: | Ceará |
| Caps7: | 1 |
| Goals7: | 0 |
| Years8: | 2020–2022 |
| Clubs8: | Muangthong United |
| Caps8: | 50 |
| Goals8: | 27 |
| Years9: | 2022 |
| Clubs9: | Chapecoense |
| Caps9: | 13 |
| Goals9: | 3 |
| Years10: | 2023– |
| Clubs10: | Muangthong United |
| Caps10: | 37 |
| Goals10: | 31 |
| Years11: | 2024– |
| Clubs11: | → Shanghai Port (loan) |
| Caps11: | 0 |
| Goals11: | 0 |
| Club-Update: | 18 May 2024 |
Willian Popp (born 13 April 1994) is a Brazilian footballer who plays as a winger or a forward[1] in Shanghai Port of the Chinese Super League.
He joined K League 2 side Busan IPark in March 2016.[2]