Māris Jass (born January 18, 1985) is a Latvian professional ice hockey forward.

He started his career in Stalkers/Juniors of the Latvian Hockey League.

After spending two seasons in the lower-tier Russian league, he spent the next six seasons with HK Liepājas Metalurgs, playing also for HC Lada Togliatti and HC Slavia Praha.

In 2009-10 he played for HK Ardo Nitra of the Slovak Extraliga.

Jass remained in Slovakia for 2010-11, signing with HK 36 Skalica, however in November he joined Neftekhimik Nizhnekamsk.