Trix Heberlein-Ruff (born 17 July 1942, in St. Gallen[1]) is a Swiss politician of the Free Democratic Party (FDP) and a former president of the National Council of Switzerland.

She subsequently studied law at the University of Zurich and earned a license degree in 1965.

From 1998 to 2014, Heberlein chaired the foundation Swisstransplant [de] that promotes organ donation.

[4] After she resigned from the Council of States she was the president of Zewo [de], a foundation which certifies NGO's.

She is a proficient skier and during her political career she organized several Ski races between Swiss parliamentarians, and interparliamenetarian races with members of the parliaments of either Austria or Great Britain.