Justin Barrett (born 13 April 1971) is an Irish politician who has served as the leader of the far-right National Party since 2016.
A nationalist, he initially began activism in the 1990s, with the anti-abortion campaign group Youth Defence.
He campaigned against the Treaty of Nice in 2002 and founded the National Party in 2016.
Barrett and the National Party campaigned for a No vote in the 2018 abortion referendum through the Abortion Never campaign, which functioned as "an Irish nationalist anti-abortion campaign."His early activism focused mostly on campaigning in Irish referenda from a Eurosceptic, anti-abortion, anti-immigration, and social conservative perspective.
He has not held public office, however he contested the 2004 European Election as an independent.