From the beginning of the twenty-first century, fiction written by women has markedly increased its presence in the Galician literary field, both in number and recognition, which has led to a quick process of canonization of some female (and feminist) authors. Against this background, this thesis examines the dialogue between processes of canonization and the concept of margins in the Galician literary field in relation to women writers’ fiction. More specifically, I focus on four contemporary authors whose work engages with different types of margins and has produced frictions in the literary field due to this reason: Margarita Ledo Andión, Patricia A. Janeiro, Cris Pavón and the post-2013 work of Teresa Moure written in the reintegracionista standard of Galician. The margins which this thesis deals with through these four case studies are feminist experimental aesthetics, critical perspectives on the institutionalised national discourse, the subgenres of science-fiction and Gothic literature, as well as the marginal position of the reintegracionista standard. In doing so, this thesis argues that the tensions and neglect which has characterised the reception of these four writers’ work unveils some blind spots in the recent visibility of fiction by female authors. In order to better understand the relations of these writers’ literary projects with the concept of margin and why they rose frictions or deafening silence in their literary context, the thesis concentrates on two interrelated branches of analysis. Firstly, it develops a socioliterary study of these authors’ work in relation to the dynamics of the Galician literary field, by drawing on the systemic theories of literature (Pierre Bourdieu and Itamar Even-Zohar) and its implementation to the Galician context (Xoan González-Millán, Antón Figueroa and Helena González). Secondly, it provides a close textual discussion of women’s fiction, underpinned by feminist literary theory related to experimental writing, nation discourse and masculinity, monstrousity and otherness, translation and authorship. The thesis proposes that these case studies offer a significant insight into the dynamics of the literary field in relation to its margins and to female authors’ fiction, helping to illuminate the criteria which influence its process of canonization and showing how this may be producing new forms of marginalization.