Pfäfers is a municipality in the Wahlkreis (constituency) of Sarganserland in the Canton of St. Gallen in Switzerland . The villages belonging to this municipality include: Pfäfers, St. Margrethenberg, Vadura, Valens, Vasön, and Vättis.

The Taminatal can look back on a long history of settlement. In the Drachenloch above Vättis stonetools of cavemen and bones of bears, perhaps 50,000 years old, were found.