| Aatu Hämäläinen | |
| Team: | IPK |
| League: | Mestis |
| Former Teams: | KalPa TPS HPK |
| Position: | Forward |
| Shoots: | Right |
| Height Ft: | 5 |
| Height In: | 10 |
| Weight Lb: | 178 |
| Birth Date: | 1987 2, df=yes |
| Birth Place: | Suonenjoki, Finland |
| Career Start: | 2006 |
Aatu Hämäläinen (born 28 February 1987) is a Finnish professional ice hockey player playing for Iisalmen Peli-Karhut in Mestis, the second-tier league in Finland.
He previously played in the SM-liiga for KalPa, TPS and HPK.[1] His younger brother Aleksi Hämäläinen also plays professionally and they are currently teammates at IPK.