Montero Ríos, Eugenio, 1832-1914, Spanish statesman and jurist. He was professor of canon law at the universities of Oviedo, Santiago, and Madrid. He entered the Cortes (1869), was several times in the cabinet, and helped effect several reforms. Montero Ríos was active in securing the accession of Amadeus and was one of his most faithful supporters. A liberal, he was chief delegate to the Paris conference that concluded the Spanish-American War (1898) and was premier in 1905.

Ríos or Rios are Spanish and Galician surnames. It literally means "rivers."

Ríos or Rios is the name of:

• Alberto Ríos, (b. 1952) poet
• Alex Ríos, Puerto Rican-American baseball player
• Christopher Lee Rios ("Big Pun"), Puerto Rican rapper
• Danny Rios, American baseball player in Nippon Professional Baseball
• Efraín Ríos Montt, former de facto President of Guatemala
• Filiberto Ojeda Ríos, Puerto Rican separatist
• Gabriel Rios, Belgian singer
• Jaime Rios, ACCORDIONIST
• Juan Antonio Ríos, President of Chile
• Marcelo Ríos, Chilean former tennis player
• Miguel Ríos, Spanish singer
• Rebeca Rios, Spanish-American politician
• Zury Ríos Montt, Guatemalan politician