The National Geographic GeoBee (called the National Geographic Bee from 2001 to 2018, also referred to as the Nat Geo Bee) was an annual geography contest sponsored by the National Geographic Society. The bee, held annually from 1989 to 2019, was open to students in the fourth through eighth grades in participating schools from the United States.

The entities represented at the national level came from all fifty U.S. states, all the territories, the Department of Defense Dependents Schools (DoDDS), and the District of Columbia.

The National Geographic Bee Finals were moderated by Jeopardy! host Alex Trebek for its first 25 years (1989–2013). At the 2013 National Geographic Bee, Trebek announced that 2013 would be his last year hosting the Finals. Newscaster Soledad O'Brien took his place the following year, moderating the bee in 2014 and 2015. O'Brien was then replaced by Mo Rocca, who would host from 2016 to the final competition in 2019.

In 2020, the Bee was canceled due to the COVID-19 pandemic. The 2021 edition was also canceled after a 75 percent drop in school registrations. The National Geographic Society later announced that the Bee had been "permanently discontinue[d]... to make way for new, transformative, and innovative geography education opportunities in which students around the globe can more equitably participate."

The competition began at the elementary school and middle school levels (4th grade - 8th grade) and usually occurred in November, December, or January. This competition required at least 6 people to enter. Private schools, public schools, and homeschooled students were allowed to enter. Typically, between five and six million students entered each year (any number of competitors could enter this competition). The two major stages in this competition were called the preliminary and the final stages. Often, the preliminary competition was further split into preliminary rounds and a semi-final. In the event of a tie, a tiebreaker round was held at the end of the preliminary rounds.

In the preliminary rounds, competitors were divided into groups of twenty and each contestant is asked one question from each of the seven themed rounds. Categories included:

Contestants were awarded 1 point per question. At the end of seven rounds, players with the top ten scores advance to the finals. In addition to the game, a player could ask for a repeat of a spelling during these rounds. However, they were restricted to only asking twice in duration of the entire geographic bee.

Quite often there was a tie, in which case a semi-final tiebreaker round was needed. For example, if six players finished the preliminary rounds with eight points and fifteen finished with seven points, the six who finished with eight points automatically advanced to the final competition. The fifteen with seven points moved into the semi-final round where the top four were determined to fill the remainder of the seats in the finals. This was done by asking every player the same question at the same time and giving each player twelve seconds to write down the answer. Each question was automatically repeated twice. Everyone revealed their answer at the end of the twelve seconds and players were eliminated on a single-elimination basis. If, using the above example of four open seats in the finals, there was a question where eight players are left in the semi-final round and three players got the question right, those three advance to the finals. The other five who got the question wrong continued with the single-elimination procedure to determine which competitor would take the last open seat in the finals. A player could not ask judges to spell or repeat words in the semi-final round.