Enrique Fernando Santiago Romero (born 1964) is a Spanish lawyer and politician, who is the secretary-general of the Communist Party of Spain (PCE) since April 2018.

[2] A member of United Left (IU) since its beginnings as political alliance in 1986, he was the leader of the Communist Youth Union of Spain from 1991 to 1993.

[2] He has worked as a lawyer, specialized in human rights and cases of trans-national justice, and took a role as IU representative in the public prosecution against Argentine and Chilean regimes, later filing a detention request against Chilean dictator Augusto Pinochet.

[2] He also worked as a lawyer for the family of José Couso, cameraman killed in Baghdad in 2003 by US fire, participating in the particular accusation that presented a criminal inquiry before the Audiencia Nacional, accusing the US military personnel deemed responsible for the Couso's death.

[3] The Central Committee of the PCE elected Santiago as the new Secretary-General of the party on 8 April 2018, replacing José Luis Centella.