Gojčin Crnojević

| reign-type = | issue-link = | issue-pipe =

• knez
• vojvoda | house-type =
• Serbian vassal
• Venetian vassal

Gojčin Crnojević (Гојчин Црнојевић, 1398–d. after 1451), also known as Kojčin Crnojević or Koja Crnojević was a Lord of Zeta, initially as a vassal of the Serbian Despotate until he revolted against Despot Stefan Lazarević. He disappeared from sources in 1451.

Gojčin was the second son of Đurađ Đurašević of the Crnojević noble family. His mother Busha Zaharia was the daughter of the Albanian nobleman Koja Zaharia of the Zaharia family, and he was named after his grandfather. His father and uncle Aleksa were the lords of the territory of Paštrovići (Luštica and hills above Kotor and Budva) during the reign of Balša III (r. 1403–1421). His brothers were Đurašin, Stefanica and another one with an unknown name and historical role. He was mentioned for the first time in 1431. He initially had the title of knez, and later vojvoda. In the beginning, he was the leading character among the brothers. The Crnojevići, initially vassals of the Serbian Despotate, revolted against the Despot; Gojčin was particularly participating. He held good relations with the Republic of Ragusa and became its citizen in July 1444. He and his two younger brothers defected to Venice after their older brother concluded his alliance with Stjepan Vukčić Kosača. He had a son, Aleksandar ("Aleksa" or "Leka").