#WakingTheFeminists was a year-long grassroots campaign for gender equality in Irish theatre. Prompted by the gender disparity of Ireland's Abbey Theatre's 2016 programme, 'Waking the Nation', Lian Bell posted a Facebook message that sparked a surge of feminist fury that ignited the #WakingTheFeminists movement. This Element considers the movement both as digital feminist activism and as part of the growing trend of data feminism, by analysing how its combined use of connective and collective action, and qualitative and quantitative data, was critical to its success. It contextualises the movement historically in relation to a series of feminist controversies in Irish theatre since 1990, before considering its impact on both policy and cultural changes across the Irish arts sector. #WakingTheFeminists' national and international resonance derived from its research-informed strategy which made it the most effective campaign for gender equality in the history of Irish theatre.