| Ángel Marcos Salas | |
| Native Name Lang: | es |
| Birth Place: | Madrid, Spain |
| Death Place: | Toulouse, France |
| Allegiance: | CNT |
| Branch Label: | Service |
| Serviceyears: | 1936–1939 |
| Unit: | Rosal Column 30th Mixed Brigade 80th Mixed Brigade 140th Mixed Brigade |
| Battles: | Spanish Civil War |
Ángel Marcos Salas (1904 in Madrid – 1988 in Toulouse) was a Spanish trade unionist.
Born into a working class family. He worked on the railroads, becoming member of the National Confederation of Labor (Spanish; Castilian: Confederación Nacional del Trabajo, CNT).
In July 1936, after the outbreak of the Spanish Civil War, he was appointed a member of the Confederal Committee at Madrid Central Station and shortly afterwards took charge of a century of the Rosal Column. Later he became part of the political commissariat of the Spanish Republican Army. He came to serve as commissar of the 30th, 80th and 140th mixed brigades, taking part in the Battle of the Ebro. After the end of the war he went into exile in France, where he was interned in a concentration camp.
He went on to live in the French city of Toulouse, where he would continue developing various activities within the CNT until his death.