Lar Familiar da Tranquilidade is a social care institution based in Vila das Aves, Portugal. Its work focuses on providing support and care through services for older people and their families. The institution offers ERPI residential care, a day centre, and home support, providing different forms of assistance according to individual needs. It also operates the António Martins Ribeiro Leisure Centre, inaugurated on 1 April 2000.

The organisation shares information about its mission, vision, values, staff, applications, and financial statements through its website. Its news highlights community activities and developments, including improvements to the dining room, recognition of employees and volunteers, and digital literacy initiatives. The institution has also received a social merit medal and provides information for arranging visits.

Located on Rua Luís Gonzaga Mendes Carvalho, Lar Familiar da Tranquilidade maintains contact by telephone and through its Facebook page. Its services and community initiatives position it as a local provider of residential, day, and home-based support, alongside leisure activities for the people it serves.