Beatrice () is a city in and the county seat of Gage County, Nebraska, United States. Its population was 12,459 at the 2010 census. Beatrice is located 40 miles (64 km) south of Lincoln on the Big Blue River and is surrounded by agricultural country.
Gage County was one of the 19 counties originally established by the Nebraska Territorial Legislature in 1854. At the time of its establishment, there were no settlers living within its boundaries.
In 1857, the steamboat Hannibal, carrying 300 passengers up the Missouri River from St. Louis, Missouri to Nebraska City, Nebraska, ran aground near Kansas City, Missouri. While it was stranded, 35 of the passengers agreed to form the "Nebraska Association", under which name they would unite in seeking a townsite and establishing a settlement in the territory.
After reaching Nebraska City, the Association divided itself into two exploratory parties, one of which went directly westward and the other southwest. The latter party located the site of Beatrice, at the point where the DeRoin Trail crossed the Big Blue River, and the whole Association decided to settle there. The settlement was named after Julia Beatrice Kinney, the 17-year-old daughter of Judge John F. Kinney, a member of the Association.
The Territorial Legislature selected Beatrice as the county seat of Gage County in 1857. The decision was challenged by Blue Springs, but was confirmed by the Legislature in 1859.