| Type: | commune |
| County: | Tulcea |
| Population Total: | auto |
| Carcaliu | |
| Coordinates: | 45.1833°N 37°W |
| Area Total Km2: | 29.48 |
| Leader Name: | Gheorghe Panfil[1] |
| Leader Term: | 2020 - 2024 |
| Leader Party: | PSD |
| Postal Code: | 827020 |
Carcaliu is a commune in Tulcea County, Northern Dobruja, Romania. It is composed of a single village, Carcaliu. At the 2011 census, 91% of inhabitants were Lipovans and 8.9% Romanians.