Josy Gyr-Steiner (10 October 1949 - 18 April 2007) was a Swiss politician from the Canton of Schwyz and member of the Swiss National Council (2003-2007).
In 2003, Gyr was elected to the National Council on the list of the Social Democratic Party of Switzerland (SPS/PSS). She was on the Council's Control Committee and on the Committee for Public Buildings.
Suffering of pancreatic cancer, Gyr resigned on 10 April 2007, and died a few days later.