| Malyi Sasyk Lagoon | |
| Caption Map: | The Malyi Sasyk Lagoon on the schematic map of the Tuzly Lagoons (#5) |
| Pushpin Map: | Ukraine Odesa Oblast |
| Pushpin Map Alt: | Location of a lagoon in Ukraine |
| Location: | Black Sea |
| Coords: | 45.6629°N 29.8589°W |
| Oceans: | Atlantic Ocean |
| Countries: | Ukraine |
| Area: | 2.36km2 |
Malyi Sasyk Lagoon, or Small Sasyk (Ukrainian: Малий Сасик, Romanian; Moldavian; Moldovan: Sasicul Mic), is a salty lagoon in the Tuzly Lagoons group in Bilhorod-Dnistrovskyi Raion of Odesa Oblast, Ukraine. It is located to south from the Shahany Lagoon. The total area of the lagoon is 2.36 km2. The lagoon is connected with the Dzhantshey Lagoon in south.
The touristic village of Rasseyka is located on the north-west coast of the lagoon. The lagoon is separated from the Black Sea and also from the Shahany Lagoon by the sandbar with the marine beaches. The continental coast is connected with the sandbar by 6 bridges.
The water body is included into the Tuzly Lagoons National Nature Park.