| Born: | November 18, 2005 | Draft: | Undrafted |
| Hometown: | Felgara, Latvia | Position: | Left Wing |
| Known For: | Shoots: | Left | |
| National Team: | Latvia | Current Team: | Saint John Sea Dogs |
Eriks Mateiko (born November 18, 2005) is a Latvian-born ice hockey winger that is currently playing with the Saint John Sea Dogs of the Quebec Major Junior Hockey League (QMJHL).