| Official Name: | Donja Suvaja |
| Native Name: | [1] |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | bottom |
| Coordinates: | 44.4108°N 16.1089°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Croatia |
| Subdivision Type1: | Region |
| Subdivision Type2: | County |
| Subdivision Name2: | Zadar County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Gračac |
| Unit Pref: | Metric |
| Area Footnotes: | [2] |
| Area Total Km2: | 4.5 |
| Elevation M: | 391 |
| Population As Of: | 2021 |
| Population Total: | 47 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 23445 Srb |
| Area Code: | +385 (23) |
Donja Suvaja (Serbian: Доња Суваја)[1] is a village in Croatia.
According to the 2011 census, Donja Suvaja had 53 inhabitants.
| Population[3] | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1857 | 1869 | 1880 | 1890 | 1900 | 1910 | 1921 | 1931 | 1948 | 1953 | 1961 | 1971 | 1981 | 1991 | 2001 | 2011 |
| 995 | 1.187 | 842 | 558 | 529 | 685 | 511 | 455 | 362 | 340 | 184 | 163 | 161 | 153 | 48 | 53 |
Note: Settlements of Donja Suvaja and Gornja Suvaja are independent settlements from 1890. Before they were part of former settlement of Suvaja. It include data for that former settlement 1857-1880.
According to the 1991 census, settlement of Donja Suvaja had 153 inhabitants, which were ethnically declared as this:
According to the 1910 census, settlement of Donja Suvaja had 685 inhabitants in 3 hamlets, which were linguistically and religiously declared as this:
| Population by language | Croatian or Serbian | |
|---|---|---|
| Donja Suvaja | 318 | |
| Mečet | 105 | |
| Suvajsko Zalužje | 262 | |
| Total | 685 (100%) |
| Population by religion | Eastern Orthodox | |
|---|---|---|
| Donja Suvaja | 318 | |
| Mečet | 105 | |
| Suvajsko Zalužje | 262 | |
| Total | 685 (100%) |