| Sum: | 296,646 | 30 | 3,735 | 1.26% | ||||
| Sub-Group | Ethnic-Group | Language | Country | Population | Churches | Evangelicals | Evang % | Major Religion |
| Kui | Kui | Kuy | Thailand | 217,415 | 4 | 100 | 0.05% | Buddhism |
| Suay | Kui | Kuy | Laos | 51,180 | 6 | 400 | 0.78% | Ethnic Religion |
| Kui | Kui | Kuy | Cambodia | 19,251 | 2 | 35 | 0.18% | Ethnic Religion |
| Kui-Kramang | Kui-Kramang | Kui | Indonesia | 5,000 | 10 | 2,700 | 54% | Christianity |
| Kui Lung | Kui Lung | Language Unknown | Laos | 3,800 | 8 | 500 | 13.16% | Ethnic Religion |