Finalists were selected by a panel of 51 coaches, scouts and journalists supervised by Hub Arkush of Pro Football Weekly.
Winners will be announced the first week in December.
The other finalists are:
Reuben Foster, Auburn, Ala.; Trey Johnson, Central Gwinnett, Lawrenceville, Ga.; Peter Kalambayi, Butler, Matthews, N.C.; and Isaac Savaiinaea, Punahou, Honolulu, Hawaii.
Smith, a Notre Dame recruit, joins the Irish family with ND senior Manti Te’o listed as one of five finalists for the collegiate Butkus Award.