Ricky Watters when he was a running back for the San Francisco 49ers. He scored 5 touchdowns in a single postseason game in the 1993 NFC.
He broke it Week 17 against the New York Giants, it was to Randy Moss, who got his 23rd touchdown that season breaking single season receiving touchdowns in a single season record.
Jerry Rice
60 touchdowns in a single season
The current record was set and is held by Ladainian Tomlinson of the San Diego Chargers. His record is 31 touchdowns, set in 2006.
28
Randy Moss
31, LaDainian Tomlinson
The record for most touchdown receptions at Auburn University is held by Terry Beasley, who had a total of 29 receiving touchdowns in only 3 seasons, 1969-1971. Beasley also holds the top 2 spots for receiving touchdowns in a single season with 11 in 1970 and 12 in 1971.
The NCAA record to rushing touchdowns in a single season is 37 by Barry Sanders in 1988. The record for passing touchdowns in a season is 58 by Colt Brennan in 2006.
As of 2012, the record is held by Ladainian Tomlinson, who scored 31 touchdowns for the San Diego Chargers in 2006.
LT
San Diego's Ladainian Tomlinson with 31 in the 2006 season.