| Henri Treial | |
| Nationality: | Estonian |
| Birth Date: | 28 May 1992 |
| Birth Place: | Võru, Estonia |
| Height: | 2.04 m |
| Weight: | 96 kg |
| Spike: | 345 cm |
| Block: | 322 cm |
| Position: | Middle blocker |
| Currentnumber: | 11 |
| Currentclub: | Knack Roeselare |
| Years: | 2008–2012 2012–2016 2016–2018 2018–2019 2019–2020 2020–2021 2021–2023 2023– |
| Clubs: |  Valio Võru Bigbank Tartu ČEZ Karlovarsko VBC Mondovì Saaremaa Saint-Nazaire Volley-Ball Greenyard Maaseik Knack Roeselare |
| Nationalyears: | 2015– |
Henri Treial (born 28 May 1992) is an Estonian volleyball player, a member of the Estonia men's national volleyball team and Belgian club Knack Roeselare.
Treial was born in Võru, and started his career in hometown club Valio Võru at the age of 16. After four seasons he moved to Bigbank Tartu and won the Estonian Championship in 2014 and the Baltic League title in 2015. He then moved to abroad and signed with Czech team ČEZ Karlovarsko.[1] With the team he won the Czech Championship in 2018. Treial spent the 2018–19 season in Italy playing for VBC Mondovì alongside compatriot Kristo Kollo. Treial spent the next season in native Estonia and played for Saaremaa.[2] He spent the 2020–21 season in France playing for Saint-Nazaire Volley-Ball and then signed with Belgian top team Greenyard Maaseik.[3] After two seasons with Maaseik Treial moved to another Belgian powerhouse Knack Roeselare.[4]
As a member of the senior Estonia men's national volleyball team, Treial competed at the 2015 Men's European Volleyball League, finishing in 4th place and at the 2015 Men's European Volleyball Championship, finishing in 11th place.[5] He also represented his country at the 2017 Men's European Volleyball Championship.