| Grubeša | |
| King of Duklja | |
| Succession: | King of Duklja |
| Reign: | 1118–1125 |
| Predecessor: | George |
| Successor: | George (reinstated) |
| Father: | Branislav |
| Death Date: | 1125 |
| Burial Place: | Church of St. George, Bar, Montenegro |
| More: | Serbia |
Grubeša Branislavljević (Serbian: Грубеша Бранислављевић) (died 1125) was a medieval king and the ruler of Duklja from 1118 to 1125. After the Byzantine Empire defeated King George I of Duklja in 1118, Grubeša assumed the throne as a Byzantine protégé. The Byzantines entitled Grubeša the rule in Duklja, as well as providing him with an army that he would command against George, who was backed by the Grand Principality of Serbia under the rule of the Vukanović dynasty. Grubeša reigned until his death in 1125, when he was defeated by George. He is buried at the Church of Saint George in Bar.