Two, in 2006 & 2007.
3
Ohio State
12
Three in football. 1996 2006 2008 Two in basketball. 2005 2006
I don't know the complete list, but I do know that Michigan State was the first D-1 university to win two championships in both basketball and football. Florida is another one.
Florida has won 7 SEC championships and 3 national championships the last being in 2008.
For the University of Central Florida the answer would be zero.
2006, in football they beat Ohio State, and basketball they beat UCLA. The basketball team also won it again, the next year beating Ohio State.
Florida has 3 recognized National Titles in 96 , 06 , 08
The Florida Gators have 3 National Championships.
3. 1996, 2006, 2008