Spike TV Host Courtney Hansen -- I'm Divorcing My Tycoon Husband

Spike TV star Courtney Hansen -- the super hot chick from "Powerblock" -- has filed for divorce from her pharmaceutical mogul husband ... TMZ has learned.

Hansen -- one of FHM's sexiest 100 in 2005 -- filed divorce docs in L.A. County Superior Court in an effort to end her 2-year marriage to Ilya Sapritsky.

In the docs, Courtney blames the split on irreconcilable differences ... and, duh, she wants spousal support.

Courtney released a statement saying ... "Marriage is extremely sacred to me, and I took honoring those vows very seriously. Unfortunately, it has become necessary for me to move on. Thank you for respecting our privacy during this time."

The split is pretty shocking, considering just last year the two were in talks to join "Real Housewives of Beverly Hills."