There are three types of Vietnamese Muslims in Vietnam:
These are one of the indigenous people of Vietnam and they form the majority of Muslims. For more details see "The History of Islam in Vietnam".
2. The Inter-Racial Muslims
These are descendents of mixed marriages between local Vietnameses and Muslim traders such as the Arabs, Indians, Indonesians, Malaysians and Pakistanis. Throughout the ages, these descendents also either married local Vietnameses who converted to Islam or Muslims from other countries. They make up the second largest group of Vietnamese Muslims.
3. The Vietnamese Converts
Throughout the ages, the local Vietnameses interacted with Muslim traders who lived in Vietnam. They were drawn to the teaching of Islam and therefore they embraced Islam. For example, there is an entire Tân BØu village in Tân An province which converted to Islam.