National Women's Hall of Fame Commemorative Coin Act of 2021 This bill directs the Department of the Treasury to mint and issue $5 gold coins, $1 silver coins, half-dollar clad coins, and proof silver $1 coins in recognition and celebration of the National Women's Hall of Fame in Seneca Falls, New York. All minted coins shall include a specified surcharge, which shall be paid to the National Women's Hall of Fame Foundation to establish an endowment fund to provide for the long-term financing of the hall's operations.