Stefano Palmieri (born 18 September 1964) is a Sammarinese politician, who served as a Captain Regent of San Marino together with Matteo Ciacci from 1 April 2018 to 1 October 2018.
He had previously served in the same position for the semester from 1 October 2009 to 1 April 2010, alongside Francesco Mussoni.