Oliveira do Bairro is a municipality in the District of Aveiro, in the Aveiro Region (Centro Region), covering 87.32 km² and home to 23,132 inhabitants (2021 census). It received its royal charter in 1514. It has four parishes: Bustos, Troviscal e Mamarrosa, Oiã, Oliveira do Bairro and Palhaça. The municipal holiday is Ascension Thursday.
