

The Leader of the Opposition (French: Chef de l'Opposition) in Nova Scotia is the MLA in the Nova Scotia House of Assembly who leads the political party recognized as the Official Opposition. This status generally goes to the leader of the second largest party in the Legislative Assembly. Jamie Baillie, the current leader of the Progressive Conservative Party of Nova Scotia, is the current leader of the opposition.
Due to a an equal number of seats won by the opposition parties in the 1999 election, the following three shared the duties of Leader of the Official Opposition from 1999-2001.