The Social Democratic Group (German: Sozialdemokratische fraktion, French: Groupe socialiste, Italian: Gruppo socialista, abbreviated S) is the second largest parliamentary group in the Swiss Federal Assembly.
It is formed by the Social Democratic Party of Switzerland.
[1] The Social Democratic Party were represented in the National Council; they sat as part of the Social-Political group with the democrats from 1896 then formed their own parliamentary group in 1911.
[2] The group is currently presided by national councillor Roger Nordmann (VD)