Mercy Hospital was a two-story building in Nampa, Idaho, United States.

The building was then used by several different occupants, the last, Valley Plaza Retirement Center, closed in 2004.

Financed by the city and the Sisters of Mercy, and using land donated by the Catholic Church, the ground was broken in December 1918.

Having outgrown the 6th Street location, the hospital moved to a 120-bed facility on 12th Avenue in 1967.

This article about a property in Idaho on the National Register of Historic Places is a stub.