Mandailing people
 A photograph of a girl dressed in a Mandailing traditional dress during the Mangulosi ceremony on her wedding day, known as Horja Godang, pic taken: 2020 | |
| Total population | |
|---|---|
| 1,034,690 (2000) | |
| Regions with significant populations | |
 Indonesia:North Sumatra 906,939 (2000) West Sumatra 127,751 (2000) Riau 77,611 (2000) Jakarta 41,393 (2000)  Malaysia: 30,000 (2001) | |
| Languages | |
| Mandailing, Indonesian, Minang | |
| Religion | |
Predominantly  Sunni Islam (99%) Minority  Christianity (1%) | |
| Related ethnic groups | |
| Minangkabau people, Angkola people, Toba people |
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The Mandailing (also known as Mandailing Batak) people are one of the sub-ethnic groups of the Batak people, found mainly in North Sumatra and West Sumatra, Indonesia. They are found mainly in the northern section of the island of Sumatra in Indonesia. They came under the influence of the Kaum Padri who ruled the Minangkabau people. As a result, the Mandailing people were influenced by Muslim culture and converted to Islam. There is also a group of Mandailing in Malaysia, especially in the states of Selangor and Perak. They are closely related to the Angkola and Toba.