| Official Name: | Tres de Mayo |
| Pushpin Map: | Paraguay |
| Mapsize: | 200px |
| Subdivision Type: | Country |
| Subdivision Name: | Paraguay |
| Subdivision Type1: | Department |
| Subdivision Name1: | Caazapá Department |
| Established Title: | Founded |
| Established Date: | 2012 |
| Area Total Km2: | 743,25 |
| Population As Of: | 2016 |
| Population Total: | 17,928 |
| Coordinates: | -26.4794°N -56.0961°W |
| Elevation M: | 168 |
Tres de Mayo is a municipality of Paraguay located in the outskirts of Caazapá. Formerly it was part of the district of Yuty, but in 2012 it was elevated to the category of municipality. It has a total area of 743,25 km2 and a population of 17,928 inhabitants in 2016.[1] [2]