Colby, Isle of Man Colby, Isle of Man Colby () is a small village in the south of the Isle of Man in the parish of Arbory. It lies on the A7 road between the towns of Castletown and Port Erin and close to the similarly sized village of Ballabeg. The name Colby is of Scandinavian origin and is derived from Kolli's Farm which was home to the lexicographer, Archibald Cregeen (1774–1841). The word Colby is thought to derive from the Viking words Col (meaning Hill) and Byr (meaning farm). The village has a railway station on the Isle of Man Steam Railway and
Port St Mary and was demolished in the 1970s, with the village's garden of remembrance and war memorial occupying the site. Port St Mary is served by St Columba's Catholic Church, which lies just outside the village and is shared with Port Erin. It is a chapel of ease in the parish of St Mary's with St Columba's in the Archdiocese of Liverpool. There are two pubs in Port St Mary - the Albert and The Railway Station, the Bay View Hotel having closed a number of years ago. The Railway Station Pub being adjacent to Port St Mary railway station on the