Colonial Williamsburg is a living-history museum and private foundation presenting a part of the historic district in Williamsburg, Virginia. Its 301-acre (122 ha) historic area includes several hundred restored or recreated buildings from the 18th century, when the city served as the capital of the colonial era Colony of Virginia. The district includes 17th-century, 19th-century, Colonial Revival, and more recent structures and reconstructions. The historic area includes three main thoroughfares and their connecting side streets, which are designed to represent how Williamsburg existed in the 18th century. Costumed employees work and dress as people did during the colonial era, sometimes using colonial grammar and diction.

In the late 1920s, the restoration of colonial Williamsburg was championed as a way to celebrate patriots and the early history of the United States. Proponents included W. A. R. Goodwin and other community leaders, the Association for the Preservation of Virginia Antiquities, Colonial Dames of America, United Daughters of the Confederacy, the United States Chamber of Commerce, and other organizations, and John D. Rockefeller Jr. and his wife Abby Aldrich Rockefeller.

Along with Jamestown, Yorktown, and Colonial Parkway, Colonial Williamsburg is part of the Historic Triangle in Virginia. The site was once used for conferences by world leaders and heads of state. In 1960, it was designated a National Historic Landmark District.

The core of Colonial Williamsburg runs along Duke of Gloucester Street and the Palace Green that extends north and south perpendicular to it. This area is largely flat, with ravines and streams branching off on the periphery. Duke of Gloucester Street and other historic area thoroughfares are closed to motorized vehicles during the day, in favor of pedestrians, bicyclists, joggers, dog walkers, and animal-drawn vehicles.

Surviving colonial structures have been restored as close as possible to their 18th-century appearance, with traces removed of later buildings and improvements. Many of the once missing colonial structures were reconstructed on their original sites beginning in the 1930s. Animals, gardens, and dependencies add to the environment, such as kitchens, smokehouses, and privies. Some buildings and most gardens are open to tourists, with the exception of buildings serving as residences for Colonial Williamsburg employees, large donors, the occasional city official, and sometimes College of William & Mary associates.

Prominent buildings include the Raleigh Tavern, the Capitol, the Governor's Palace (all reconstructed), the Courthouse, the Wythe House, the Peyton Randolph House, the Magazine, and the independently owned and functioning Bruton Parish Church (all originals). Colonial Williamsburg's portion of the historic area begins east of the College of William & Mary's College Yard.

Four taverns have been reconstructed for use as restaurants and two for inns. There are craftsmen's workshops for period trades, including a printing shop, a shoemaker, a blacksmith, a cooperage, a cabinetmaker, a gunsmith, a wigmaker, and a silversmith. There are merchants selling tourist souvenirs, books, reproduction toys, pewterware, pottery, scented soap, etc. Some houses are open to tourists, including the Peyton Randolph House, the Geddy House, the Wythe House, and the Everard House, as are such public buildings as the Courthouse, the Capitol, the Magazine, the Public Hospital, and the Public Gaol. Former notorious inmates of the Gaol include pirate Blackbeard's crew who were kept there while they awaited trial.

Colonial Williamsburg operations extend to Merchants Square, a Colonial Revival commercial area designated a historic district in its own right. Nearby are the Abby Aldrich Rockefeller Folk Art Museum and DeWitt Wallace Decorative Arts Museum, operated by Colonial Williamsburg as part of its curatorial efforts.