Boca Raton /?bo?k? r??to?n/ is the southernmost city in Palm Beach County, Florida, United States, incorporated in May 1925 (first incorporation in 1924).
The area today known as "Boca Raton" was originally occupied by the Tequesta tribe, a Native American people that occupied an area along the southeastern Atlantic coast of Florida. What Spanish voyagers called "Boca de Ratones" was originally located to the south, in present-day Biscayne Bay in Miami. By mistake since the 19th century, mapmakers moved this location to the north and began referring to the city's lake, today known as Lake Boca Raton, as "Boca Ratone Sounde". The area was largely uninhabited after the Indigenous people were cleared from the area by the Spanish and the British. The first significant European settler to this area was Captain Thomas Moore Rickards in 1895, who resided in a house made of driftwood on the east side of the East Coast Canal, south of what is now the Palmetto Park Road bridge. He surveyed and sold land from the canal to beyond the railroad north of what is now Palmetto Park Road. Early settlement in the area increased shortly after Henry Flagler's expansion of the Florida East Coast Railway, connecting West Palm Beach to Miami.