| Joonas Riismaa | |
| Position: | Small forward |
| Height M: | 1.99[1] |
| Weight Kg: | 90 |
| Team: | Free Agent |
| Nationality: | Estonian |
| Birth Date: | 6 March 2002 |
| Birth Place: | Rapla, Estonia |
| Career Start: | 2018 |
| Years1: | 2018–2022 |
| Team1: | Pistoia Basket 2000 |
| Years2: | 2018–2020 |
| Team2: | →Basket Montale |
| Years3: | 2022–2024 |
| Team3: | New Basket Brindisi |
Joonas Riismaa (born 6 March 2002) is an Estonian professional basketball player who last played for New Basket Brindisi of the Lega Basket Serie A (LBA). He also represents the Estonian national team.
Riismaa played youth basketball with Mens Sana Basketball Academy.[2] In 2018, he signed a junior contract with Pistoia Basket.[3] After playing for Pistoia's under-18 and reserve teams from 2018 to 2020, Riismaa made his debut for the senior team in 2020.
On 11 July 2022, Riismaa signed a contract with Happy Casa Brindisi of the Lega Basket Serie A (LBA) and the FIBA Europe Cup.[4]
Riismaa helped the Estonian U20 national team win the bronze medal at the Division B tournament of the 2022 FIBA U20 European Championship.[5]