Martti Olavi Siirala (November 24, 1922 – August 18, 2008) was a Finnish psychiatrist, psychoanalyst and philosopher.
He was inspired by psychoanalysis, the anthropological medicine of Viktor von Weizsäcker and the existential philosophy of Martin Heidegger.
The outcome was a unique synthesis theory that Siirala called social pathology.
Siirala studied psychoanalysis in Zürich under the guidance of Medard Boss and Gustav Bally.
There he met also colleague and lifetime friend Gaetano Benedetti.
Siirala was also the founding member of Finnish Therapeia-foundation, an alternative psychoanalytic training institute established 1958.
Especially in the early years Siirala was actually the principal of the foundation, both at a theoretical and practical level.