José Olaguer Feliú y Ramírez (October 25, 1857 – November 21, 1929) was a Spanish lieutenant general, Minister of War and politician.

He participated in the Battle of Kakarong de Sili in the island of Luzon on January 1, 1897, where the Commandant Olaguer Feliu achieved victory with only 600 men against 6.000 indigenous fighters katipuneros.

As Deputy Chief of Staff of the Captaincy General of Manila, Olaguer Feliú was one of the senior officers who participated in the surrender of the city.

Olaguer Feliú occupied the position of Minister of War during one of the most difficult and turbulent periods in modern Spanish military and political history: firstly the Moroccan campaign exacerbated by the hesitation of the government, after the events of the Disaster of Annual in July 1921; and on the other hand the actions of the military defenses boards (political juntas organised amongst the officer corps of the Spanish Army).

All of these occurred in the middle of intense press and parliamentary debate about the report known as the Expediente Picasso (concerning responsibility for the Annual disaster).

In August 1923 Olaguer Feliú became Director General of Carabineros of Spain, where he improved the service conditions of the personnel of this frontier guard/customs force.

These improvements were undertaken at a time of budgetary constraints imposed by the Government, in spite of opposition from within both the Carabineros and Army hierarchy.