The following is a list of the schools that have qualified the most teams for the National Debate Tournament.

The number immediately after the school name is the number of teams that school has qualified for the tournament. The number in parentheses is the number of teams that school qualified prior to the adoption in 1970 of the rule that allowed two teams per school to attend the tournament.

1. Northwestern University 83 (14)
2. University of Kansas 80 (18)
3. University of Southern California 75 (18)
4. Dartmouth College 75 (17)
5. Harvard University 71 (17)
6. Baylor University 67 (14)
7. Wake Forest University 66 (12)
8. Georgetown University 65 (10)
9. Emory University 64 (4)
10. University of Redlands 63 (10)
11. Wayne State University 59 (9)
12. University of Kentucky 51 (4)
13. Augustana College (Illinois) 48 (18)
14. University of Pittsburgh 45 (7)
15. University of Utah 43 (5)