Pío del Pilar
| Pío del Pilar | |
|---|---|
| del Pilar in 1898 | |
| Member of the Malolos Congress from Negros Oriental | |
| In office September 15, 1898 – November 13, 1899 Serving with Luciano San Miguel and Mariano Oirola | |
| Personal details | |
| Born | Pío Isidro y Castañeda 11 July 1860 San Pedro de Macati, Manila, Captaincy General of the Philippines, Spanish Empire | 
| Died | 21 June 1931 (aged 70) Morong, Rizal, Insular Government of the Philippine Islands, United States | 
| Resting place | Mausoleo de los Veteranos de la Revolución, Manila North Cemetery, Santa Cruz, Manila, Philippines | 
| Spouse | Juliana Valeriano | 
| Parents | 
 | 
| Nickname | "Pang-Una" | 
| Military service | |
| Allegiance | First Philippine Republic Republic of Biak-na-Bato Katipunan (Matagumpay) | 
| Branch/service | Philippine Revolutionary Army | 
| Years of service | 1896–1901 | 
| Rank | Brigadier General | 
| Battles/wars | Philippine Revolution 
 | 
Pío del Pilar (born Pío Isidro y Castañeda; July 11, 1860 – June 21, 1931) was a Filipino revolutionary general. He was one of the lead figures in the Philippine Revolution, and fought major battles in Manila and Cavite.
To safeguard his family and prevent them from harassment, he changed his surname from Isidro to del Pilar.