Arab Indonesians or, colloquially known as Jama'ah, are Indonesian citizens of mixed Arab – mainly Hadhrami – and Indonesian descent. The ethnic group generally also includes those of Arab descent from other Middle Eastern Arabic speaking nations. Restricted under Dutch East Indies law until 1919, the community elites later gained economic power through real estate investment and trading. Currently found mainly in Java, especially West Java and East Java, they are almost all Muslims.

The Hadharem or the Hadhrami are an Arab sub-ethnic group indigenous to the Hadhramaut region in South Arabia, which is part of modern-day eastern Yemen. They speak Hadhrami Arabic. Among the two million inhabitants of Hadhramaut, there are about 1,300 distinct tribes.