The Széchenyi Medicinal Bath in Budapest (IPA: [seːtʃeːɲi], Hungarian: Széchenyi-gyógyfürdő) is the largest medicinal bath in Europe. Its water is supplied by two thermal springs, their temperature is 74 °C (165 °F) and 77 °C (171 °F), respectively.

Components of the thermal water include sulphate, calcium, magnesium, bicarbonate and a significant amount of fluoride acid and metaboric acid. Medical indications are on degenerative joint illnesses, chronic and sub-acute joint inflammations, as well as orthopaedic and traumatological post-treatments.

Széchenyi Medicinal Bath