The 63rd Scripps National Spelling Bee was held in Washington, D.C. at the Capital Hilton on May 30–31, 1990, sponsored by the E.W. Scripps Company.
The winner was 13-year-old Amy Marie Dimak of Seattle, Washington, correctly spelling "fibranne". Dimak reported that she knew all 11 words she faced, and did not make any guesses. Second place went to 13-year-old Eric Enders of El Paso, Texas, who missed "douanier", spelling it as "doinier".
There were 226 spellers this year, 127 girls and 99 boys. The youngest competitor was 9 year old Erika Harrell from Muncie, Indiana. Eight spellers dropped out in round one, 33 dropped in round two, and 30 were eliminated in round three.