| To | |
| States: | Cameroon, Central African Republic |
| Speakers: | none |
| Ref: | e18 |
| Speakers2: | (2nd-language use only) |
| Familycolor: | Niger-Congo |
| Fam2: | Atlantic–Congo |
| Fam3: | Mbum–Day |
| Fam4: | Mbum |
| Fam5: | (unclassified) |
| Iso3: | toz |
| Glotto: | tooo1238 |
| Glottorefname: | To |
To is an unclassified Mbum language of northern Cameroon and the Central African Republic. It is only used as a second language, as the secret male initiation language of the Gbaya.