In the United States, there is no single "shortest" city name, but rather several incorporated places that share the distinction of having only two letters. The most prominent examples include Ai, Ohio; Ed, Kentucky; Oz, Kentucky; and Ti, Oklahoma. While many small hamlets and unincorporated communities have two-letter names, these specific locations are often cited in geographical trivia for their extreme brevity. Beyond the two-letter category, there are numerous three-letter cities that are more widely known, such as Ely, Nevada or Lee, Massachusetts. It is important to note that "city" status in the U.S. can be a legal designation that varies by state; for instance, Monowi, Nebraska, is famously the smallest "city" by population (consisting of a single resident, Elsie Eiler, as of early 2026), but its name is six letters long. The two-letter names represent the absolute limit of brevity allowed by the English alphabet for a named municipal entity, making them rare and fascinating landmarks for road-trippers and cartographers alike.