Majuro (; Marshallese: Mājro [mʲæzʲ(e)rˠo]) is the capital and largest city of the Marshall Islands. It is also a large coral atoll of 64 islands in the Pacific Ocean. It forms a legislative district of the Ratak (Sunrise) Chain of the Marshall Islands. The atoll has a land area of 9.7 square kilometers (3.7 sq mi) and encloses a lagoon of 295 square kilometers (114 sq mi). As with other atolls in the Marshall Islands, Majuro consists of narrow land masses. It has a tropical trade wind climate, with an average temperature of 27 °C (81 °F).

Majuro has been inhabited by humans for at least 2,000 years and was first settled by the Austronesian ancestors of the modern day Marshallese people. In 1885, the Marshall Islands were annexed by the German Empire and Majuro became their first and primary trading post. The city has also been under Japanese and American administration. After the Marshall Islands broke away from the Federated States of Micronesia in 1978 to form the Republic of the Marshall Islands, Majuro became the new country's capital and meeting place of the Nitijeļā, supplanting the former capital of Jaluit.

The main population center, Delap-Uliga-Djarrit (DUD), is made up of three contiguous motus and has a population of 20,301 people as of 2012. Majuro has a port, shopping district, and various hotels. Majuro has an international airport with scheduled international flights to Hawaii, Federated States of Micronesia, Kiribati, Guam, and Nauru, and flights to domestic destinations around the country. Its economy is primarily service sector-dominated.