St. Alphonsus Hospital, Demolished 1894 hospital site in Boise, United States

St. Alphonsus Hospital was a three-story French Renaissance building designed by J.K. Hollowell in 1893 and completed in 1894 at Fifth Street between State and Washington streets in Boise. Its first floor held a six-bed wardroom, a sunlit operating room, a smoking room, a drug room, and a dining room with kitchen; the second floor was partly finished and the third remained unimproved.

Bishop Glorieux of the Catholic Diocese of Boise proposed a hospital as early as 1891. Designed by J.K. Hollowell in 1893 and completed in 1894, the three-story French Renaissance building opened in December 1894 under five Sisters of the Holy Cross, becoming the order's seventh hospital. It was added to the National Register of Historic Places in 1976 and delisted in 1977 before demolition.

The hospital's name honours Saint Alphonsus Liguori, the 18th-century Italian bishop who founded the Redemptorist order. Its first home was a three-storey French Renaissance building designed by J.K. Hollowell in 1893, where five Sisters of the Holy Cross ran the wards from December 1894. The Idaho Statesman described the six-bed wardroom as "so neat and cozy, one would almost wish to be ill" to use it.

The hospital moved about three miles west in 1972 to its present site on Curtis Road, just south of I-184. The original 1894 building stood at Fifth Street between State and Washington, two blocks east of the state capitol, and was razed in the 1970s for a state office building.

The 1894 building stood at Fifth Street between State and Washington, two blocks east of the state capitol. Idaho bought it in 1971 for offices, but arson fires during 1976 renovation made it unsafe; it was razed and replaced by the ten-story Pete Cenarrusa Building at 450 West State Street.