Heidi Klum's Identity Crisis

Heidi Klum has figured out one of the few ways on Earth to become less sexy ... she wants to change her exotic-sounding last name to "Samuel."

Heidi filed documents in L.A. County Superior Court today, requesting she be allowed to take on the last name of her husband, Seal Henry Olusegun Olumide Adelo Samuel.

The name change isn't official yet -- a judge has to sign off on it -- so there's still hope.

We'll find out on November 20.