This article examines Abi Daré’s The Girl with the Louding Voice (2020) from a semiotic perspective, arguing that the novel is not just a narrative of resistance, but also a performance of resistance, in terms of form and signification. Drawing on Saussure’s theory of the sign, Barthes’s notion of mythology and Jakobson’s model of linguistic functions, the analysis identifies three interconnected dimensions of semiotic rebellion: the non-standard English of Adunni as a site of linguistic subversion and creative reclamation; the symbolic opposition between domestic interiors and outdoor spaces as an encoding of patriarchal captivity versus liberatory possibility; and the first-person narrative structure of the novel as a challenge to dominant patriarchal mythologies. The study shows how Daré’s linguistic innovations, spatial symbolism and narrative strategies combine to denaturalise patriarchal norms, reclaim female narrative authority and participate in a wider project of cultural transformation. This analysis adds to the body of work on African women’s writing, feminist narratology, and postcolonial semiotics.