The Fundação Mariana Seixas is a social assistance foundation based in Ranhados, Viseu, Portugal. Established in 1981 by Francisco José de Vasconcelos Peixoto in memory of his mother, Mariana Seixas, it continues her commitment to helping people in need of moral and material support. Its work focuses on promoting social care in the municipality of Viseu, with priority given to the Ranhados parish.

The foundation serves older adults, children and young people through a range of services, including residential care for older people (ERPI), a day centre and home support, as well as childcare and preschool provision. Its stated vision also includes after-school activities and continued care, with an emphasis on health, psychological well-being and educational support.

The foundation aims to provide personalised, high-quality services that promote well-being and quality of life. It values each person as an individual, and highlights dignity, respect and close attention to users’ needs. Its services are supported by partnerships with local and regional organisations, including schools, health services and public bodies.