LUI meaning in Regional ?

The Luiseño or Payómkawichum are an indigenous people of California who, at the time of the first contacts with the Spanish in the 16th century, inhabited the coastal area of southern California, ranging 50 miles (80 km) from the present-day southern part of Los Angeles County to the northern part of San Diego County, and inland 30 miles (48 km). In the Luiseño language, the people call themselves Payómkawichum (also spelled Payómkowishum), meaning "People of the West." After the establishment of Mission San Luis Rey de Francia (The Mission of Saint Louis King of France), "the Payómkawichum began to be called San Luiseños, and later, just Luiseños by Spanish missionaries due to their proximity to this San Luis Rey mission.

Today there are six federally recognized tribes of Luiseño bands based in southern California, all with reservations. Another organized band is not federally recognized.