The Nova Scotia Lighthouse Preservation Society (NSLPS) is a non profit charitable organization that works to save lighthouses in the province of Nova Scotia, Canada. It is the largest and oldest lighthouse heritage organization in Canada. The society was formed in 1993 by a group of lighthouse supporters who met on a trip to Sambro Island Lighthouse, near Halifax, the oldest surviving lighthouse in North America. The society lists its goals as supporting the preservation and awareness of lighthouses, assisting community groups in leasing or taking ownership of lighthouses, developing research and acting as a watchdog on the state of lighthouses.