There are 17-21 different ethnic groups in Cambodia

The ethnic groups of Cambodia are classified separately as indigenous and non-indigenous. The indigenous ethnic minority groups are Kuy, Brao, Kreung, Kavet, Tampuan, Pnong, Stieng, Pear, Chong, Saoch, Suoi, Jarai. The non-indigenous ethnic minority are Chinese, Vietnamese, Cham, Tai, Lao, Siam, Hmong, Kola, Burmese.