| Juan Fontena | |
| Position: | Power forward / center |
| Height Ft: | 6 |
| Height In: | 5 |
| Team: | Marinos de Oriente |
| League: | Superliga Profesional de Baloncesto |
| Nationality: | Chilean |
| Birth Date: | February 15, 1987 |
| Birth Place: | Carupano, Venezuela |
| Career Start: | 2007 |
| Years1: | 2014 |
| Team1: | Club Deportes Castro (Chile) |
| Years2: | 2016 |
| Team2: | Osorno Básquetbol (Chile) |
| Years3: | 2019 |
| Team3: | Club Deportivo Valdivia (Chile) |
| Years4: | 2019 |
| Team4: | Club Deportes Castro (Chile) |
| Years5: | 2020 |
| Team5: | Club Deportivo Social y Cultural Puerto Varas (Chile) |
| Years6: | 2023 |
| Team6: | ABA Ancud (Chile) |
| Years7: | 2024 |
| Team7: | Marinos de Oriente (Venezuela) |
Juan Fontena (born February 15, 1987), is a Chilean professional basketball player. He currently plays for the Marinos de Oriente club of the Superliga Profesional de Baloncesto de Venezuela.
He represented Chile's national basketball team at the 2016 South American Basketball Championship, where he recorded most blocks for his team.[1]