Nebraska's 2nd congressional district is a congressional district in the U.S. state of Nebraska that encompasses the core of the Omaha–Council Bluffs metropolitan area. It includes all of Douglas County, which includes the state's largest city Omaha; it also includes Saunders County and areas of Western Sarpy County. It has been represented in the United States House of Representatives since 2017 by Don Bacon, a member of the Republican Party. It was one of 18 districts that would have voted for Joe Biden in the 2020 presidential election had they existed in their current configuration while being won or held by a Republican in 2022. With a Cook Partisan Voting Index rating of EVEN, it is the least Republican district in Nebraska, a state with an all-Republican congressional delegation.

Douglas County is a county located in the U.S. state of Nebraska. As of the 2020 United States Census, the population is 584,526. It is the state's most populous county, home to well over one-fourth of Nebraska's residents. Its county seat is Omaha, the state's largest city. The county was established in 1854 and named after Stephen A. Douglas (1813–1861), who was then serving as Senator from Illinois.