Frindsbury TQ744697 51°23′58″N 0°30′29″E / 51.399423°N 0.508127°E is a parish on the River Medway, on the opposite bank to Chatham Dockyard in Kent, England. It was a centre of ship building before 1820, building at least six 74 gun third rate ships of the line and many smaller vessels. From 1820, until recent times, the ship yards built over 100 Thames sailing barges. Shipbuilding has stopped but in 2006, one yard was still active in ship repair.