Úna Ní Fhairchellaigh and the Irish Utopian Vision is an innovative work that reviews the mindset that inspired the generation and growth of the revival movement in Ireland from the time of the fin de siècle onwards. By conducting a biographical study of Úna Ní Fhaircheallaigh, the most influential woman in the Irish language during that period, a fresh insight is given into the influence of young people on the revival of the Irish language, and a re-reading of the function and importance of women in the movement. The influence of utopian thinking on the revivalists is shown and the type of utopianism, namely, the Gaelic utopian vision, which urged the social reformers of cultural nationalism to give back to the ugly history of the nineteenth century and to imagine and promote a different future in Ireland in the twentieth century.