Honolulu (; Hawaiian: [honoˈlulu]) is the capital and largest city of the U.S. state of Hawaii. It is an unincorporated part of and the county seat of the City and County of Honolulu along the southeast coast of the island of Oʻahu. The city is the main gateway to Hawaiʻi and a major portal into the United States. The city is also a major hub for international business and military defense, as well as being host to a diverse variety of east–west and Pacific cultures, cuisine, and traditions.
Honolulu is the westernmost and southernmost major U.S. city. For statistical purposes, the United States Census Bureau recognizes the approximate area commonly referred to as "City of Honolulu" (not to be confused with the "City and County") as a census county division (CCD). Honolulu is a major financial center of the islands and of the Pacific Ocean. The population of the Honolulu census designated place (CDP) was 345,064 as of the 2019 population estimate, while the Honolulu CCD was 390,738.
Honolulu means "sheltered harbor" or "calm port" in Hawaiian. The old name is Kou, a district roughly encompassing the area from Nuʻuanu Avenue to Alakea Street and from Hotel Street to Queen Street which is the heart of the present downtown district. The city has been the capital of the Hawaiian Islands since 1845 and gained historical recognition following the attack on Pearl Harbor by Japan near the city on December 7, 1941.