Boca Raton ( rə-TOHN; Spanish: Boca Ratón, [ˈboka raˈton]) is a city in Palm Beach County, Florida, United States. The population was 97,422 in the 2020 census and it ranked as the 344th largest city in the United States in 2021. However, many people with a Boca Raton postal address live outside of municipal boundaries, such as in West Boca Raton. As a business center, the city also experiences significant daytime population increases. A part of South Florida, Boca Raton is 45 miles (72 km) north of Miami and is a principal city of the Miami metropolitan area, which had a population of 6,012,331 as of 2015.

It was first incorporated on August 2, 1924 as "Bocaratone," and then incorporated as "Boca Raton" on May 26, 1925. While the area had been inhabited by the Glades culture, as well as Spanish and later British colonial empires prior to its annexation by the United States, the city's present form was developed predominantly by Addison Mizner starting in the 1920s. Mizner contributed to many buildings in the area having Mediterranean Revival or Spanish Colonial Revival architecture. Boca Raton also became a key city in the development of the early computer industry. The city is the birthplace of IBM's first personal computer and various other technologies created by the company. Brightline has a Boca Raton station that provides passenger rail service to Miami and eventually Orlando.

Still centered around luxury beach culture, the city today is dotted by many malls and shopping centers, including the Town Center at Boca Raton. The ODP Corporation, which operates Office Depot and OfficeMax, is headquartered here. Boca Raton is also home to the main campus of Florida Atlantic University and the Evert Tennis Academy, owned by former professional tennis player Chris Evert. The city has a strict development code for the size and types of commercial buildings, building signs, and advertisements that may be erected within the city limit, which has led to major thoroughfares without billboards and large advertisements, as well as increased green spaces on roads.