House of Assembly is a name given to the legislature or lower house of a bicameral parliament. In some countries this may be at a subnational level.

Historically, in British crown colonies as the colony gained more internal responsible government, the House of Assembly superseded the (usually unelected) Legislative Council as the colonial legislature, often becoming the lower house.

Kathleen Mary Margaret "Kathy" Dunderdale MHA (née Warren; born February 1952) is a Canadian politician and the tenth and current Premier of Newfoundland and Labrador, Canada, having served in this capacity since December 3, 2010. Dunderdale was born and raised in Burin; before entering politics she worked in the fields of community development, communications, fisheries and social work. Her first foray into politics was as a member of the Burin town council, where she served as deputy mayor. She was also a Progressive Conservative Party (PC) candidate in the 1993 general election and served as President of the PC Party.

In the 2003 general election, Dunderdale was elected as Member of the House of Assembly (MHA) for Virginia Waters. She served in the cabinets of Danny Williams—at various times holding the portfolios of Innovation, Trade and Rural Development and Natural Resources—where she developed a reputation as one of the most high-profile members of Williams' cabinets. Dunderdale became premier upon the resignation of Williams and after becoming the PC leader she led the party to victory in the October 2011 election. Dunderdale is the first female premier in the province's history and the sixth woman to serve as a premier in the history of Canada.