Ruth Lüthi (née: Affolter; born 1947) is a Swiss academic and a former politician.

[2] She was an assistant at the Psychological Institute of the University of Fribourg and then a research associate at the National Fund between 1979 and 1982.

[1] In the 1990–1991 academic year Lüthi joined the University of Bern where she worked as a lecturer.

[3] She was named as the head of the public health and social affairs department in the Canton of Fribourg in 1991 and held post for 15 years until 2006.

[2] The same year she was also made president of the Freiburg International Film Festival.