Located in North Omaha, a neighborhood of Omaha, Nebraska, Fort Omaha is a historic United States Army post that played a significant role in the history of the American West. Established in 1868 as the Omaha Barracks, the post was created to provide military protection to the transcontinental railroad and the growing city of Omaha. In 1869, the post was renamed Fort Omaha and its mission was expanded to include the supervision of the nearby Omaha and Winnebago reservations.

During its early years, Fort Omaha was a tumultuous place, marked by clashes between the military and the Native American tribes of the region. In 1879, the Fort Omaha was the site of a skirmish between the military and the Ponca tribe, who were being forcibly relocated from their ancestral lands in present-day Oklahoma to a reservation in Nebraska. The Ponca chief, Standing Bear, was arrested and imprisoned at Fort Omaha for leading his people back to their ancestral lands. Standing Bear's subsequent trial in the United States District Court in Omaha led to a landmark court ruling, which established that Native Americans were "persons" under the law and had the right to sue in court.

In 1883, Fort Omaha was selected as the site of the U.S. Army Signal Corps' balloon reconnaissance program, with the Army launching its first military balloon from the Fort Omaha parade ground in 1890. The Fort Omaha balloon reconnaissance program was notable for its use of balloons in military communications and reconnaissance, and the program continued until 1911. During the early 20th century, Fort Omaha was used as a mobilization center during both World War I and World War II.

In 1979, the Fort Omaha campus was listed on the National Register of Historic Places and was designated as a historic district. Today, the campus is home to the Metropolitan Community College, the Fort Omaha Historical Marker, and the General Crook House Museum. The General Crook House Museum is a historic house museum that was once the residence of General George Crook, who was stationed at Fort Omaha in the late 19th century.

Fort Omaha also features a historic parade ground, which was the site of military parades and exercises during its time as an active military post. The parade ground is also home to the Fort Omaha Powder Magazine, a historic building that was used to store gunpowder and ammunition during the late 19th and early 20th centuries.

A number of buildings from the original Fort Omaha complex have been preserved and rehabilitated, including the Historic Hospital Building and the 1878 Ordinance Building. The Historic Hospital Building was constructed in 1879 and served as the Fort Omaha post hospital. The 1878 Ordinance Building was constructed in 1878 and was used to store military supplies and munitions.

Today, Fort Omaha is a popular destination for tourists and history enthusiasts, offering guided tours of the campus and its historic buildings. Visitors can explore the General Crook House Museum, the Fort Omaha Powder Magazine, and the Historic Hospital Building, as well as other historic buildings and sites on the campus.

Fort Omaha remains an important part of the military history of the United States and a significant cultural and historical resource for the city of Omaha and the state of Nebraska.