| Official Name: | Alti Aghaj-e Bozorg |
| Native Name: | التي اغاج بزرگ |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Golestan |
| Subdivision Type2: | County |
| Subdivision Name2: | Maraveh Tappeh |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Maraveh Tappeh |
| Population As Of: | 2006 |
| Population Total: | 447 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.7111°N 55.9164°W |
Alti Aghaj-e Bozorg (Persian: التي اغاج بزرگ, also Romanized as Āltī Āghāj-e Bozorg; also known as Āltī Āqāj) is a village in Maraveh Tappeh Rural District, in the Central District of Maraveh Tappeh County, Golestan Province, Iran. At the 2006 census, its population was 447, in 80 families.