Argentina
- Pilar, capital of I leave homonym
- Pilar, common in the province of Córdoba
Brazil
Philippines
- Pilar, municipality in the Province of Abra
- Pilar, municipality in the Bataan Province
- Pilar, municipality in the Bohol Province
- Pilar, municipality in the Capiz province
- Pilar, municipality in the Cebu Province
- Pilar, municipality in the Province of Sorsogon
- Pilar, municipality in the Surigao del Norte province
Paraguay
- Pilar, capital of Department of Ñeembucú