Puddle of Mudd Singer -- I’m Divorcing My Hot Wife

Just weeks before his third wedding anniversary, Puddle of Mudd singer Wes Scantlin has filed for divorce from his smokin' hot model wife ... TMZ has learned.

Scantlin filed divorce docs in L.A. County Superior Court Tuesday ... seeking to end his marriage to model/host Jessica Nicole Scantlin. The two married back in 2008.

Scantlin had previously referred to Jessica as "my little muse" -- claiming she inspired a bunch of his songs.

Calls to Scantlin have not been returned.