Paul Rechsteiner is a Swiss attorney, union leader and former politician. He served as a member of the National Council (Switzerland) from 1986 to 2011 and from 2011 to 2022 as a member of the Council of States (Switzerland) for the Social Democratic Party for the St. Gallen constituency. Between 1998 and 2018 he was the president of the Swiss Trade Union Federation (SGB). He was among the most influential Swiss politicians.