The Cathedral Church of St. Catherine of Siena is the home of the Diocese of Allentown. It is located at 1825 Turner Street, Allentown, Pennsylvania.
By 1952, the parish campus had grown greatly, with additions of a school and convent. There was a need for a new church. On June 9 1952, Msgr. Leo Fink broke-ground on the new church. In April 26 1953, the laying of the cornerstone of the new Church was presided over by the Most Reverend Joseph M. McShea, Auxiliary Bishop of Philadelphia, representing Cardinal Dougherty. The building was designed in a colonial style. The exterior is faced with a variegated salmon brick trimmed with Indiana limestone. At the crossing formed by the transept, there is a tall spire toped a cross. The windows are colonial glazed antique cathedral glass.
The Most Reverend Joseph McShea, D.D. was installed as the first Bishop of Allentown on April 11, 1961, thus officially raising St. Catharine of Siena Church to a Cathedral.