| Official Name: | 25 de Mayo |
| Settlement Type: | Town |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Type2: | Department |
| Leader Title: | Mayor |
| Leader Name: | David Edgardo |
| Established Title: | Established |
| Established Date: | 26 July 1909 |
| Unit Pref: | Imperial |
| Population As Of: | 2001, INDEC |
| Population Total: | 5953 |
| Timezone: | ART |
| Utc Offset: | -3 |
| Postal Code Type: | Postcode |
| Postal Code: | L8201 |
| Area Code: | 0299 |
25 de Mayo is a town in La Pampa Province in Argentina.[1]