The 1990 Delaware Fightin' Blue Hens football team represented the University of Delaware as a member of the Yankee Conference during the 1990 NCAA Division I-AA football season.
Led by 25th-year head coach Tubby Raymond, the Fightin' Blue Hens compiled an overall record of 6–5 with a mark of 5–3 in conference play, placing in a four-way tie for second in the Yankee Conference.
The team played home games at Delaware Stadium in Newark, Delaware.
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