1961:

Record: 11-1 (6-0 SEC)
Highlights: Defeated No. 1 Ohio State in the Sugar Bowl to claim the national championship.
Key players: Joe Namath (QB), Billy Neighbors (RB), Lee Roy Jordan (DT)

1964:

Record: 10-0 (7-0 SEC)
Highlights: Won their 12th national championship with a perfect 10-0 record.
Key players: Ken Stabler (QB), Jimmy Fuller (RB), John Hadl (DB)

1978:

Record: 11-1 (6-1 SEC)
Highlights: Defeated No. 1 Penn State in the Sugar Bowl to win their 13th national championship.
Key players: Mark Ingram (RB), Wilbur Jackson (WR), Marty Lyons (DE)

1992:

Record: 13-0 (8-0 SEC)
Highlights: Won their 14th national championship with an undefeated 13-0 record.
Key players: David Palmer (QB), Derrick Lassic (RB), Chris Samuels (OT)

2009:

Record: 14-0 (8-0 SEC)
Highlights: Won their first national championship under Nick Saban with a perfect 14-0 record.
Key players: Mark Ingram (RB), Julio Jones (WR), Marcell Dareus (DT)