The Castro of Sacóias (Portuguese: Povoado Fortificado de Sacóias/Castro de Sacóias) is a former fortified settlement and archeological site in the civil parish of Baçal, municipality of Bragança in the Alto Trás-os-Montes subregion of the Portuguese Norte Region.

[1] It is likely that the site was constructed during the Iron Age, and restructured over time.

[1] During the second half of the 18th century, the then-existing religious temple was moved from the Castro to the main settlement, to substitute an older chapel, then housing a baptismal fountain and conserving the Blessed Sacrament.

[1] The Castro, and group of existing structures, are of individual importance that resulted in it being designated a National Monument in 1910, as well as a structure of municipal interest by the council of Bragança.

[1] The site is located on an isolated, rural hilltop rising over the Chapel of Nossa Senhora da Assunção.