| Guimer Justiniano | |
| Fullname: | Guimer Justiniano Osorio |
| Birth Date: | 29 June 1989 |
| Birth Place: | Santa Cruz de la Sierra |
| Position: | Central Defence |
| Currentclub: | Club Blooming |
| Clubnumber: | 24 |
| Years1: | 2013-2017 |
| Clubs1: | Club Deportivo Guabirá |
| Caps1: | 31 |
| Goals1: | 1 |
| Years2: | 2018-2023 |
| Clubs2: | Royal Pari F.C. |
| Caps2: | 119 |
| Goals2: | 5 |
| Years3: | 2023- |
| Clubs3: | Club Blooming |
| Caps3: | 8 |
| Goals3: | 0 |
| Nationalyears1: | 2019– |
| Nationalteam1: | Bolivia |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
| Club-Update: | 30 April 2024 |
| Nationalteam-Update: | 12:58, 13 September 2022 (UTC) |
Guimer Justiniano Osorio (born 29 June 1989) is a Bolivian footballer who plays in central defence for Bolivian Primera División for Club Blooming.[1]
Having initially played as a left-back he began to transition to centre-back in 2018 due to his aerial ability.[2] He wore the captains armband for Royal Pari for the first time in October 2020 as the club started playing again after the enforced break from playing for the COVID-19 pandemic.[3]
In January 2023, he signed for Club Blooming.[4]
He made his full debut for Bolivia on the 10 October 2019, against Venezuela.[5] Further international call-ups to Bolivian squad came in 2020.[6]