St Kentigern's Church, Crosthwaite is a church at Great Crosthwaite on the outskirts of Keswick in Cumbria, England. It is the Anglican church of the parish of Crosthwaite. Since 1951 it has been a Grade II* listed building. The church has an evangelical tradition. There has been a church on the site since the 6th century. The present building is largely medieval, with some Victorian internal alterations. Among the vicars of the parish was Hardwicke Rawnsley, co-founder of the National Trust.