Callao (disambiguation)
- Avenida Callao
- Battle of Callao
- Battle of Callao (1838)
- Blockades of Callao
- Callao
- Callao (Line B Buenos Aires Underground)
- Callao (Line D Buenos Aires Underground)
- Callao (Madrid Metro)
- Callao (song)
- Callao Cave
- Callao District
- Callao Square
- Callao Township, Macon County, Missouri
- Callao affair
- Callao, Missouri
- Callao, Utah
- Callao, Virginia
- El Callao Municipality
- El Callao, Venezuela
- Los Campeones del Pueblo
- National University of Callao
- Pilsen Callao
- Roman Catholic Diocese of Callao
- Siege of Callao (disambiguation)