| Brian Leiva | |
| Fullname: | Brian Leonardo Nicolás Leiva Vargas |
| Birth Date: | 21 February 1998 |
| Birth Place: | Punta Arenas, Chile |
| Currentclub: | Provincial Ovalle |
| Position: | Forward |
| Youthyears1: | 2014–2017 |
| Youthclubs1: | Universidad Católica |
| Years1: | 2017–2020 |
| Caps1: | 1 |
| Goals1: | 0 |
| Years2: | 2019–2020 |
| Clubs2: | → Deportes Melipilla (loan) |
| Caps2: | 17 |
| Goals2: | 1 |
| Years3: | 2021 |
| Clubs3: | Deportes Melipilla |
| Caps3: | 6 |
| Goals3: | 0 |
| Years4: | 2021 |
| Clubs4: | Iberia |
| Caps4: | 18 |
| Goals4: | 0 |
| Years5: | 2022–2023 |
| Clubs5: | San Antonio Unido |
| Caps5: | 41 |
| Goals5: | 5 |
| Years6: | 2024– |
| Clubs6: | Provincial Ovalle |
| Caps6: | 0 |
| Goals6: | 0 |
| Nationalyears1: | 2015 |
| Nationalteam1: | Chile U17 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 1 |
| Pcupdate: | 13 February 2024 |
| Ntupdate: | 28 October 2015 |
Brian Leonardo Nicolás Leiva Vargas (born 21 February 1998) is a Chilean professional footballer who plays as a forward for Chilean Segunda División side Provincial Ovalle.[1]
In 2024, Leiva signed with Provincial Ovalle in the Segunda División Profesional de Chile.[2]