| Pilar | |
| Settlement Type: | Municipality of Alagoas, Brazil |
| Flag Alt: | Flag of Pilar |
| Map Alt: | Location of Pilar in Alagoas |
| Pushpin Map: | Brazil#South America |
| Pushpin Relief: | yes |
| Coordinates: | -9.5972°N -35.9567°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Brazil |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Name1: | Northeast |
| Established Title: | Founded |
| Established Date: | 16 March 1872[1] |
| Leader Title1: | Mayor |
| Leader Name1: | Renato Rezende Rocha Filho (PSC) (2021-2024)[2] [3] |
| Leader Title2: | Vice Mayor |
| Leader Name2: | Ivanilda Rodrigues de Melo (PSDB) (2021-2024) |
| Area Total Km2: | 259.614 |
| Elevation M: | 13 |
| Population As Of: | 2022 |
| Population Total: | 35370[4] |
| Population Density Km2: | 136.24 |
| Population Demonym: | Pilarense (Brazilian Portuguese) |
| Timezone: | Brasília Time |
| Utc Offset: | -03:00 |
| Postal Code Type: | Postal code |
| Postal Code: | 57150-000[5] |
| Blank Name: | HDI (2010) |
| Blank Info: | 0.610 – medium |
| Website: | pilar.al.gov.br |
Pilar is a municipality located in the Brazilian state of Alagoas. Its population was 35,212 (2020)[6] and its area is 249 km².[7] On March 28, 1876, Pilar carried out the last official execution of Brazil when it hanged the slave Francisco.[8] [9]