| Junior Viza | |
| Fullname: | César Junior Viza Seminario |
| Height: | 1.72 m |
| Birth Date: | 3 April 1985 |
| Birth Place: | Lima, Peru |
| Currentclub: | Universidad San Martín |
| Clubnumber: | 27 |
| Position: | Attacking midfielder |
| Youthclubs1: | Academia Cantolao |
| Years1: | 2003-2007 |
| Clubs1: | Alianza Lima |
| Caps1: | 155 |
| Goals1: | 22 |
| Years2: | 2008-2010 |
| Caps2: | 33 |
| Goals2: | 0 |
| Years3: | 2008-2009 |
| Clubs3: | → Hapoel Petah Tikva (loan) |
| Caps3: | 29 |
| Goals3: | 3 |
| Years4: | 2010 |
| Caps4: | 14 |
| Goals4: | 0 |
| Years5: | 2011-2012 |
| Clubs5: | Alianza Lima |
| Caps5: | 47 |
| Goals5: | 4 |
| Years6: | 2013-2014 |
| Clubs6: | Juan Aurich |
| Caps6: | 53 |
| Goals6: | 4 |
| Years7: | 2015-2017 |
| Caps7: | 53 |
| Goals7: | 11 |
| Years8: | 2018 |
| Caps8: | 27 |
| Goals8: | 6 |
| Years9: | 2019 |
| Caps9: | 20 |
| Goals9: | 8 |
| Years10: | 2020 |
| Caps10: | 12 |
| Goals10: | 0 |
| Years11: | 2021 |
| Caps11: | 16 |
| Goals11: | 0 |
| Years12: | 2022 |
| Caps12: | 18 |
| Goals12: | 1 |
| Years13: | 2023- |
| Caps13: | 15 |
| Goals13: | 4 |
| Pcupdate: | 10 August 2023 |
| Nationalyears1: | 2006 |
| Nationalteam1: | Peru |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
César Junior Viza Seminario (born 3 April 1985) is a Peruvian footballer who plays as an attacking midfielder. He currently plays for Club Deportivo Universidad de San Martín de Porres in the Peruvian Segunda División.[1]