1990 U.S. Open Cup

The 1990 United States Open Cup is the 77th edition of the tournament to crown the national champion of the United States.
The A.A.C. Eagles of Chicago won the cup 2–1 against the Brooklyn Italians at Kuntz Stadium in Indianapolis, Indiana.

Bracket

Regional semifinals

I Philadelphia United German-Hungarians 4-2 Acton Colonials
I Brooklyn Italians 3-1 Beadling Blues
II A.A.C. Eagles 1-0 Madison 56ers
II Mike Duffy's 3-1 Craftsman Paint
III FC Dallas 2-1 Houston Meadows
III St. Petersburg Kickers 4-1 Atlanta Datagraphic
IV San Francisco Greek-American 1-0 Washington Fatigues
IV Los Angeles Zamora 2-1 OT Colorado Comets

Regional Finals

I United German-Hungarian USASA 3-5 Brooklyn Italians NESSL
II Mike Duffy's USASA 0-1 A.A.C. Eagles MSL
III FC Dallas LSSA 1-0 St. Petersburg Kickers FSSL
IV Los Angeles Zamora CA 2-1 OT Greek-American SFSFL

National semifinals

Los Angeles Zamora CA 0-4 OT Brooklyn Italians NESSL
A.A.C. Eagles MSL 3-0 FC Dallas LSSA