| Team: | Free agent |
| Former Teams: | Espoo Blues Lahti Pelicans SaiPa TPS HPK Dresdner Eislöwen STS Sanok Manchester Phoenix DVTK Jegesmedvék Ferencváros |
| Position: | Defence |
| Height Ft: | 5 |
| Height In: | 9 |
| Weight Lb: | 187 |
| Shoots: | Right |
| Birth Date: | 1982 9, mf=yes |
| Birth Place: | Espoo, Finland |
| Draft: | Undrafted |
| Career Start: | 2003 |
Joni Tuominen (born September 4, 1982) is a Finnish professional ice hockey defenceman who is currently a free agent having last played for Ferencváros in the Erste Liga.
He previously played in Finland for Espoo Blues of the Liiga.[1] As a free agent, Tuominen opened up to the possibility of playing abroad after ten seasons in Finland, when he accepted a (unsuccessful) try-out with Czech club, HC Olomouc on August 11, 2014.[2] Instead, he spent the 2014-15 season playing in Germany's DEL2 with Dresdner Eislöwen. He moved to Poland's STS Sanok for the 2015-16 season, and spent the 2016-17 season with the EIHL's Manchester Phoenix and DVTK Jegesmedvék of the Erste Liga.