Women's Christian Temperance Union of New Zealand is a non-partisan, non-denominational, and non-profit organisation that is the oldest continuously active national organisation of women in New Zealand. The national organisation began in 1885 during the visit to New Zealand by Mary Clement Leavitt, the first world missionary for the Woman's Christian Temperance Union. The WCTU NZ was an early branch of the World Woman's Christian Temperance Union and a founding affiliate of the National Council of Women of New Zealand. Men may join the WCTU NZ as honorary members.

Anne Ward was the first national president of the Women's Christian Temperance Union New Zealand from 1885 to 1887, and a prominent member of the women's suffrage movement in New Zealand.