Polaris is the twelfth studio album by power metal band Stratovarius, released on 15 May 2009.

It is the first Stratovarius album to feature bassist Lauri Porra and guitarist Matias Kupiainen, following former bassist Jari Kainulainen's departure from the band in 2005 and former guitarist Timo Tolkki's departure in 2008.

Timo Kotipelto, who at the time of Polaris' release had been a member of Stratovarius the longest (since 1994) among the current members, considered Polaris to be "the album that saved the band" and said that "without it there would not be any Stratovarius.

Stratovarius in 2006[6] had recorded a demo album called Revolution Renaissance, performed one Revolution Renaissance song live in August 2007 ("Last Night on Earth") and according to Kotipelto had intended to release a completed version of the album in 2008.

[9] In its first week of release, the album sold around 800 copies in the U.S.[10] Following Polaris' original release, a Digipak edition was reissued on 21 May 2010, containing a bonus disc of live recordings from the 2009–10 Polaris world tour.