| Tonjon | |
| States: | Ivory Coast |
| Ethnicity: | Djimini people |
| Extinct: | ? |
| Ref: | e25 |
| Familycolor: | Niger-Congo |
| Fam1: | Niger–Congo |
| Fam2: | Mande |
| Fam3: | Western Mande |
| Fam4: | Central |
| Fam5: | Manding–Jogo |
| Fam6: | Jogo–Jeri |
| Fam7: | Jogo |
| Iso3: | tjn |
| Glotto: | tonj1246 |
| Glottorefname: | Tonjon |
Tonjon is an extinct Mande language once spoken by blacksmiths among the Djimini Senoufo of Ivory Coast. It was closely related to Ligbi, another blacksmith language.