| Official Name: | Tinuj |
| Native Name: | طينوج |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Markazi |
| Subdivision Type2: | County |
| Subdivision Name2: | Ashtian |
| Subdivision Type3: | Rural District |
| Subdivision Name3: | Central |
| Population As Of: | 2006 |
| Population Total: | 215 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Coordinates: | 34.5486°N 50.2883°W |
Tinuj (Persian: طينوج, also Romanized as Ţīnūj) is a village in Ashtian County, Markazi Province, Iran. At the 2006 census, its population was 215, in 92 families.