John Paul II Center for the New Evangelization, Catholic theological center in Denver, Colorado, US

John Paul II Center for the New Evangelization is a Catholic theological center in Denver that brings together Saint John Vianney Theological Seminary, Redemptoris Mater Seminary, and the Catholic Pastoral Center. The complex on South Steele Street serves as a hub for theological training and diocesan administration.

The site was originally known as Saint Thomas Seminary and received its current name in 1996 following Pope John Paul II's visit to Denver. That papal visit marked an important moment for the region's Catholic community.

The campus takes its present name from Pope John Paul II's 1996 visit to Denver, when the former Saint Thomas Seminary was renamed in his honour. The Cardinal Stafford Library, named for the Denver archbishop who became a cardinal, serves the seminarians, and the Religious Sisters of Mercy of Alma live in a convent on the grounds.

The center is accessed via South Steele Street in Denver, where the buildings are easy to locate. Visitors should know this is an active educational facility and advance notice may be needed to visit.

The campus is listed on the National Register of Historic Places listings in Denver, Colorado. The listing covers the grounds that began as Saint Thomas Seminary, a detail many pass without noticing.