| Muyu | |
| Nativename: | Kati |
| Speakers: | 12,000 |
| Date: | 2002 |
| Ref: | e18 |
| Familycolor: | Papuan |
| Fam2: | Central & South New Guinea ? |
| Fam4: | Lowland Ok |
| Lc1: | kti |
| Ld1: | North Muyu (Niinati) |
| Lc2: | kts |
| Ld2: | South Muyu (Metomka) |
| Glotto: | nort2916 |
| Glottoname: | North |
| Glottorefname: | North Muyu |
| Glotto2: | sout2940 |
| Glottoname2: | South |
| Glottorefname2: | South Muyu |
Muyu, Moyu,[1] or Kati is one of the Ok languages of Western New Guinea.
The related Ninggerum language is also called 'Muyu'.