Valentín Díaz

{{More citations needed|date=March 2022}}

{{family name hatnote|Díaz|Villanueva|lang=Spanish}}

{{Infobox person

| name = Valentín Díaz

| image =

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| birth_name = Valentín Díaz y Villanueva

| birth_date = {{birth date|1845|11|1}}

| birth_place = Paoay, Ilocos Norte, Captaincy General of the Philippines, Spanish Empire

| death_date = {{death date and age|1916|12|11|1845|11|1}}

| death_place = Tondo, Manila, Insular Government of the Philippine Islands

| resting_place =

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Valentín Díaz y Villanueva (1 November 1845 – 11 December 1916) was a Filipino patriot who was among the founders of the Katipunan that started the Philippine Revolution against Spain in 1896. He was elected as treasurer of the organization.{{cite book |last1=Constantino |first1=Renato |last2=Constantino |first2=Letizia R. |title=A History of the Philippines |date=1975 |publisher=NYU Press |isbn=978-0-85345-394-9 |page=161 |url=https://books.google.com/books?id=kdhWCgAAQBAJ&pg=PA161 |access-date=9 March 2022 |language=en}} On July 7, 1892, he together with fellow masons{{cite news |last1=Hernandez |first1=Samuel P. |title=Masons in History |url=https://books.google.com/books?id=kGYVAAAAIBAJ&pg=PA111 |access-date=9 March 2022 |publisher=Manila Standard |date=13 July 1999 |language=en}} Andres Bonifacio, Deodato Arellano, Ladislao Diwa, and Jose Dizon founded the Katipunan through the ritual of blood compact.{{cite news |last1=Salud |first1=Joel P. |title=The Philippine Revolution Of 1896: Heralding The Asian awakening |url=https://books.google.com/books?id=nJMVAAAAIBAJ&pg=PA20 |access-date=9 March 2022 |publisher=Manila Standard |date=12 June 1997}}

Díaz was born in Paoay, Ilocos Norte. He was a member of La Liga Filipina, which José Rizal founded to peacefully promote reforms in the Spanish colonial administration of the Philippines. Being a resident of Tondo, Manila, he joined the La Liga council that was headed by Andrés Bonifacio, one of the founders of the Katipunan.

Díaz was one of the signatories of the Pact of Biak-na-Bato{{cite book |title=Centennial Commemorative Lectures, 1998 |date=1998 |publisher=The Committee |page=198 |url=https://books.google.com/books?id=6BpwAAAAMAAJ |access-date=9 March 2022 |language=en}} in 1897. He joined the revolutionaries exiled in Hong Kong as one of the conditions set forth by the Pact.

Díaz died on 11 December 1916 at the age of 71.

File:Birthplace of Valentin Diaz historical marker.jpg historical marker]]