USA Junior Outdoor Track & Field Champions
Men's 400 m
| 2011 | 45.85 | Ronell Mance | USC |
| 2010 | 45.68 | Errol Nolan | Houston |
| 2009 | 46.04 | Tavaris Tate | unattached |
| 2008 | 45.62 | O'Neal Wilder | Mississippi State |
| 2007 | 45.38 | Bryshon Nellum | Southern California Running Cougars |
| 2006 | 46.02 | Quentin Iglehart-Summers | Baylor |
| 2005 | 46.26 | Justin Oliver | unattached |
| 2004 | 46.80 | LaShawn Merritt | Norfolk Real |
| 2003 | 45.64 | Ashton Collins | Texas |
| 2002 | 45.54 | Darold Williamson | Baylor |
| 2001 | 46.37 | Brandon Matlock | Bakersfield College |
| 2000 | 46.69 | James Graham | |
| 1999 | 46.82 | Curtis Pressley | |
| 1998 | 46.38 | Tony Berrian | |
| 1997 | 46.73 | Edward Levine | |
| 1996 | 45.62 | Obea Moore | |
| 1995 | 45.01 | Jerome Young | |
| 1994 | 45.77 | Desmond Johnson | |
| 1993 | 46.30 | Benedict Beyers | |
| 1992 | 45.68 | Deon Minor | |
| 1991 | 45.75 | Deon Minor | |
| 1990 | 46.18 | Chris Nelloms | |
| 1989 | 46.69 | Chris Nelloms | |
| 1988 | 46.28 | Jerome Williams | |
| 1987 | 45.17 | William Reed | |
| 1986 | 46.37 | Clifton Campbell | |
| 1985 | 45.80 | Daymon Lee | |
| 1984 | 45.96 | Andrew Valmon | |
| 1983 | 45.55 | James Rolle | |
| 1982 | 46.32 | Jeff Jackson | |
| 1981 | 46.90 | Adrian Ward | |
| 1980 | 46.35 | Jeff Hill | |
| 1979 | 46.72 | Guy Goodwin | |
| 1978 | 46.03 | Larry Goldston | |
| 1977 | 46.09 | Anthony Tufariello | |
| 1976 | 45.7 | Tony Darden | |
| 1975 | 46.2 | Tony Darden | |
| 1974 | 46.2 | Curtis Byrd | |
| 1973 | 46.7 (440 yd.) | Karl Farmer | |
| 1972 | 46.3 (440 yd.) | Ron Ray |