Crosthwaite Parish Church is a church at Great Crosthwaite on the outskirts of Keswick in Cumbria, England. It is dedicated to St Kentigern and 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.