| José Eduvigis Díaz | |
| Birth Date: | 17 October 1833 |
| Birth Place: | Pirayú, Paraguay |
| Death Place: | Paso Pucú, Paraguay |
| Allegiance: |  Paraguay |
| Branch: | Paraguayan Army |
| Branch Label: | Branch |
| Serviceyears: | 1852 — 1867 |
| Rank: | Brigadier General |
| Battles: | Paraguayan War |
José Eduvigis Díaz Vera (17 October 1833 – 7 February 1867) was a Paraguayan general. Díaz was born in the town of Cerro Verá east of Pirayú in the department of Paraguarí. His parents were Juan Andrés Díaz and Dolores Vera.
In 1852 he joined the militia and later led Battalion #40 of the police. He became the police chief in Asunción and first distinguished himself on raids across the Río Paraná at Corrientes in the spring of 1866 during the Paraguayan War. Díaz was the hero of the September 22, 1866 battle of Curupaity, leading a humiliating defeat of the allied forces.
Barely four months later, however, on 26 January 1867, a Brazilian shell exploded over general Diaz's canoe while he was fishing in the River Paraguay, outside the camp at Curupayty. President Francisco Solano López visited the wounded Díaz every day. Díaz's leg was amputated by doctors, but he still died on 7 February 1867.[1]
In addition to the battle of Curupayty, Díaz participated in the battles of Pehuajó, Estero Bellaco, Tuyutí (in which he commanded the Paraguayans against the combined allied forces), Boquerón, and Sauce.
After his death, his coffin was brought to Asunción, where the town accompanied it to its resting place in the Recoleta neighborhood. In 1939, Díaz's remains were deposited in an urn in the National Pantheon of the Heroes, along with the remains of Carlos Antonio López.
Paraguay's Ruta 4 highway is named after him.[2] He appears on the 100 Guaraní coin.