BENASSI:
Origin: Italy
http://www.italygen.com/italiansurnames/keyB.php?pag=108
http://www.cognomiitaliani.org/cognomi/cognomi0002en.htm
Related names:
BENASSA
BENASSAI
BENASSI
BENASSINI
BENASSO
BENAZZI
BENAZZO
Probably derived from the medieval Benassai and its modifications or transformations of the medieval name Beme, Italianized form from the Latin nomen Bonus.