Budaki, or Budaksky Lagoon (other names: Shabolatsky Liman, Shabolat, Budaksky Liman; Ukrainian: Будацький лиман, Шаболат, Romanian: Limanul Budachi, Şabolat) is a Black Sea lagoon (liman) in Bessarabia, southern Ukraine.

The health spa urban-type settlement of Serhiivka is located on the coasts of the Budaki Lagoon.

The temporary connection between the lagoon and the sea is organised via artificial canal «Budaki» (on the southern west), sometime via natural erosion (washout) of the sandbar.

In the central part of the lagoon, in the urban-type settlement of Serhiivka, the bridge is connect the town with the sandbar.

Now the most desalinated part is the Akkembet Bay and the northeast of the lagoon, which connected to the Dniester Estuary (Salinity 2-14‰), and maximal mineralization is in southwest (15-32‰).