Topsail is a defunct provincial electoral district for the House of Assembly of Newfoundland and Labrador, Canada. In 2011, there are 11,080 eligible voters living in the district. The district was abolished in 2015 and was mostly replaced by Topsail-Paradise. Parts of the riding were also redistributed into Mount Scio, Mount Pearl North and Conception Bay South. Topsail was created in a 1995 redistribution, incorporating much of Conception Bay South and a small part of Mount Scio-Bell Island.