Centro Social Paroquial de Santo António de Riachos is a Portuguese private social solidarity institution founded on 25 September 1995 to support families and the wider community in Riachos. Guided by its mission to provide social support to local families, the organisation offers services for older adults as well as community-focused facilities and activities.

Its services for older people include a day centre, home support, a residential care facility for older people (ERPI), and assisted residences. For the wider community, it provides a social and recreational meeting centre, a community hall, laundry services, and catering. These services form a broad range of practical and social support for people in the local area.

The institution is based at the Riachos Parish Complex on Rua de Santo António, and provides contact channels for its centre, general enquiries, residential care, and assisted residences. Centro Social Paroquial de Santo António de Riachos serves as a local resource for families and individuals seeking community support and social care.