Disney's America was a proposed Disney theme park in the early 1990s. A site was selected in Haymarket, Virginia, approximately five miles (8.0 km) from Manassas National Battlefield Park and 35 miles (56 km) west of Washington, D.C., accessible from Interstate 66. Disney's America would have consisted of nine distinctly themed areas spanning 125–185 acres (51–75 ha), and it would have featured hotels, housing, a golf course, and nearly 2,000,000 square feet (190,000 m²) of retail and commercial development.

The $650-million project (equivalent to $1.24 billion in 2024) was announced on November 11, 1993. It would have been themed to the history of the United States, and it was scheduled to open in 1998. The project had initial support from various politicians and local officials, but it soon faced opposition from citizen's groups and historians who objected to Disney's planned portrayal of historical events, as well as the potential impact on nearby historic sites. It was cancelled in September 1994 following disappointing early results for Euro Disney (now Disneyland Paris), the death of Frank Wells, rising costs, the prospect of reduced profits with the park being closed for four months each year, and vigorous public protest from historians and activists.

When Knott's Berry Farm in Buena Park, California, went on sale in 1997, discussions to buy the park and retheme it revived the concept. However, the Knott family refused to sell to Disney, citing concerns over Disney's plans, and the project failed to take off. Several of the proposed elements of Disney's America were incorporated into Disney's California Adventure, which opened in 2001.

Then-Disney CEO Michael Eisner stated the genesis for Disney's America was sparked by a visit taken by him and other Disney executives to Colonial Williamsburg three to four years before the 1993 announcement. After coming up with the concept, Disney spent two years scouting potential sites near Washington, D.C. However, officials from Explore Park, a history theme park near Roanoke that opened in 1994, alleged that Disney stole some of the ideas for Disney's America from their park after a 1987 meeting between the officials from the two companies.

At the time it was announced on November 11, 1993, Disney had already purchased or held options on the 3,000 acres (1,200 ha) of land needed for the proposed park. After concept plans for Disney's America were drawn up for the history-based attraction in 1993, it became Eisner's pet project. Eisner obtained the support of outgoing Governor L. Douglas Wilder (D) and incoming Gov. George Allen (R), as well as the Virginia Commission on Population Growth and Development. Wilder said he was "pleased that you [Disney] have come to us," and Allen promised to "kick down any hurdles" that would hold up the park. Wilder, who had learned of the proposed park approximately two weeks before the announcement, elaborated that Disney had not forced Virginia into a bidding war through government concessions to attract the development, in contrast with the first American Legoland park, which was the subject of an ongoing competition between Prince William County and Carlsbad, California. Many local citizens, including the head of the Haymarket Historical Commission, supported the project for economic reasons. As originally proposed, Disney's America would have created 1,900 jobs and generated $50 million annually in tax revenue.

This is not a Pollyanna view of America. We want to make you a Civil War soldier. We want to make you feel what it was like to be a slave or what it was like to escape through the underground railroad.

— Bob Weis, Disney Senior Vice President (November 1993)

Peter Rummell, president of Disney Design & Development, stated the park was designed to be a one-day experience, and the goal was to make history "real but also make it fun." Rummell acknowledged that creating entertainment around historical events such as slavery and the Civil War could be controversial, but he elaborated that "an intelligent story, properly told, shouldn't offend anybody ... But we won't worry about being politically correct." The location was chosen to tap into the tourist crowds visiting Washington, D.C., and several local attractions, including the battlefield at Manassas, Kings Dominion, Busch Gardens, Jamestown, Yorktown, Colonial Williamsburg, and the Dulles-based Udvar-Hazy Center of the National Air and Space Museum.