🇺🇸 Kailua s a place (CDP) in Honolulu County, Hawaii, United States. It lies in the Koʻolaupoko District of the island of Oʻahu on the windward coast at Kailua Bay. It is in the judicial district and the ahupua'a named Ko'olaupoko. It is 12 miles (19 km) north-east of Honolulu – over Nu‘uanu Pali.
In the Hawaiian language Kailua means "two seas" or "two currents", a contraction of the words kai (meaning "sea" or "sea water") and ʻelua (meaning "two"); it is so named because of the two former fishponds in the district (Kawainui and Kaʻelepulu) or the two currents which run through Kailua Bay.
Kailua is primarily a residential community, with a centralised commercial district along Kailua Road.
Places of note in Kailua include Kailua Beach Park, Kaʻōhao or Lanikai Beach, Kawainui Marsh, Maunawili Falls, and Marine Corps Base Hawaii. It was home to Barack Obama’s winter White House.
Kailua has a population of over 40,514 people. Kailua also forms part of the wider Honolulu County which has a population of over 1,016,508 people.