| Riung | |
| Also Known As: | Far Eastern Manggarai |
| Region: | Flores |
| State: | Indonesia |
| Speakers: | 14,000 |
| Date: | 1981 |
| Ref: | e18 |
| Familycolor: | Austronesian |
| Fam2: | Malayo-Polynesian |
| Fam3: | Central–Eastern |
| Fam4: | Sumba–Flores |
| Fam5: | Ende–Manggarai |
| Fam6: | Manggarai |
| Iso3: | riu |
| Glotto: | riun1237 |
| Glottorefname: | Riung |
Riung is a language of central Flores, in East Nusa Tenggara Province, Indonesia. It has sometimes been considered a dialect of Manggarai to the west, but is only marginally intelligible with it.