Callista Gingrich

Callista Louise Gingrich (née Bisek), born March 4, 1966, in Whitehall, Wisconsin, is an American diplomat, author, businesswoman, and documentary film producer. She served as U.S. Ambassador to the Holy See from 2017 to 2021 and has been the U.S. Ambassador to Switzerland and Liechtenstein since 2025, while previously leading Gingrich 360 and authoring children's books.[1][2][3][5]