Lastva Grbaljska's population is made up of 51.5% Serbs and 37.7% Montenegrins while other ethnicities make up only 10.8% of the village's population.
Serbs 51.5% Montenegrins 37.7% other/undeclared 10.8% Lastva Grbaljska (Serbian Cyrillic:  ) is a village in the municipality of Kotor, Montenegro. 
