Etelvino Vega Martínez (1906–1939) was a Spanish politician and military officer.

In 1931, he was a member of the central committee of the Communist Party of Spain (PCE).

He subsequently spent time in the Soviet Union before returning to Spain.

[1] After the outbreak of the Spanish Civil War, he fought with the Fifth Regiment on the Somosierra front and later with the Popular Army in the Battle of Guadalajara.

[5] After the end of the war, he was captured by the Nationalists at the Port of Alicante, then he was confined in Los Almendros concentration camp and Albatera concentration camp,[6] and finally executed in November 1939.