| Utirik Atoll | |
| Native Name: | Utrōk |
| Native Name Lang: | Marshallese |
| Native Name Link: | Marshallese language |
| Map: | Marshall Islands |
| Location: | North Pacific Ocean |
| Coordinates: | 11.2539°N 169.8°W |
| Country: |  Marshall Islands |
| Archipelago: | Ratak |
| Total Islands: | 10 |
| Area Km2: | 2.43 |
| Elevation M: | 3 |
| Population: | 264 |
| Population As Of: | 2021 |
| Ethnic Groups: | Marshallese |
Utirik Atoll or Utrik Atoll (Marshallese: Marshallese: Utrōk, [1]) is a coral atoll of 10 islands in the Pacific Ocean, and forms a legislative district of the Ratak Chain of the Marshall Islands. Its total land area is only 0.94order=flipNaNorder=flip, but it encloses a lagoon with an area of 22.29order=flipNaNorder=flip. It is located approximately 47km (29miles) east of Ujae Atoll.The population of Utirik Atoll was 264 at the 2021 census.[2] It is one of the northernmost Marshall Islands with permanent habitation.
The larger islets are:
Historical artifacts have been unearthed on the Atoll which date back to ca. 380 C.E., including tools likely used by early Micronesian peoples.[3] Its first recorded sighting was by the Spanish navigator Álvaro de Saavedra on board the ship Florida on 29 December 1527.[4] Together with Rongelap, Ailinginae and Toke atolls, they were charted as Islas de los Reyes (Islands of the Three Wise Kings in Spanish) due to the proximity of Epiphany. Utirik Atoll was claimed by the German Empire along with the rest of the Marshall Islands in 1885.[5] After World War I, the island came under the South Seas Mandate of the Empire of Japan. Following the end of World War II, Utirik came under the control of the United States as part of the Trust Territory of the Pacific Islands. Utirik was one of four atolls affected by nuclear fallout from Castle Bravo, the largest of the many nuclear weapon tests conducted at Bikini Atoll immediately following World War II. Research is still being done to ascertain the radiation levels, though many scientists agree that there is no harmful effect from the radiation still present. The island has been part of the independent Republic of the Marshall Islands since 1986.
Marshall Islands Public School System operates Utrik Elementary School.[6] Northern Islands High School on Wotje serves the community.[7]
On 24 August 2016, Utirik Atoll recorded a temperature of 35.6C, which is the highest temperature to have ever been recorded in the Marshall Islands.[8]