The Cathedral of the Good Shepherd of San Sebastián (Guipúzcoa, Basque Country, Spain) is the seat of the Diocese of San Sebastián, belonging to the Archdiocese of Pamplona.

It is the most notorious religious building in the capital of Gipuzkoa, endowed with a pronounced verticality, and the largest in Guipúzcoa.

Its construction took place in the last years of the 19th century in a neo-Gothic historicist style.

Since 1953 it has held the rank of cathedral.

In 1881, by Royal Order, a new parish division was adopted for San Sebastián that included the creation of a parish, claimed for years by the inhabitants of the area, in the southern part of the city, which would later be called the Ensanche of Amara. In August 1887, the City Council gave a piece of land between the Urumea River and Playa de la Concha, occupied by sandy areas and marshes, for the construction of the temple. Until it was finished, the spiritual needs of the local congregation were met by a provisional parish, consecrated to the Sacred Heart of Jesus; Inaugurated in March 1888, this rudimentary temple was made of wood and was located between the streets of Loyola and the Prince, in the nearby and old San Martín Market.

In December 1887 a construction board chaired by Archpriest Martín Lorenzo de Urizar Zalduegui-Ariño defined the bases of the project competition and set a budget of 750,000 pesetas, as well as the capacity of the temple and its architectural style, which should be neo-Gothic. The projects presented were four, the layout being chosen by the San Sebastian architect Manuel Echave, who was entrusted with the direction of the works. The new church would take the invocation of the Good Shepherd.

The Spanish royal family, who were spending the summer in the city, were invited to the laying of the first stone. The events took place on September 29, 1888. The regent queen, María Cristina, her children and the infant Antonio de Orleans y Borbón, together with ministers and other authorities, attended the solemn mass that the diocesan prelate Mariano Miguel Gómez celebrated in the provisional parish of the Sacred Heart. After the ceremony, the royal procession moved to the site destined for the new temple and there proceeded to place the first stone, which covered a lead box, in which the portraits of the Pope and the royal family, several coins of the period and copies of the Madrid Gazette and the Ecclesiastical Bulletin. The act of the ceremony was signed by the child king Alfonso XIII, two years and four months old, for which his mother had to take her hand, being the first time that the monarch had stamped his signature on a official document.

Then four years of reforms and modifications, necessary to condition the temple according to its new diocesan use, ended. Thus, the presbytery was completely transformed with the installation of a new table and the removal of the original high altar, in a flowery neo-Gothic style, carved in cedar wood by the Barcelona workshops of Juan Riera, which was replaced by a stalls for service coral and for the image of the Good Shepherd; the Chapel of the Immaculate Conception was transformed into a chapter house; and the Chapel of Christ, in the crypt, became the new parish sacristy, leaving the former sacristy for the exclusive service of the council.

In 1972, when Jacinto Argaya Goicoechea was bishop and on the occasion of the 75th anniversary of its inauguration, a second reform of the temple was undertaken. Then, the neo-Gothic pulpit, the work of the San Sebastian artist Nicolás Medive, which was attached to one of the pillars, and the altars dedicated to the Dolorosa, the Virgen del Rosario and the Virgen del Pilar were removed. Also, roofs and stained glass windows were restored, walls and vaults were cleaned, the old American oak floor was replaced by a marble one, interior lighting was improved and new benches were installed.