Biocultural approaches that acknowledge the multiple and dynamic relationships between the diversity of cultures and nature are growing in popularity in sustainability research. Scientific contributions to biocultural approaches written in Spanish are numerous, including influential work on biocultural memory, biocultural heritage and biocultural ethics. However, despite linguistic diversity being considered essential in knowledge production for assuring broad and balanced evidence to successfully cope with sustainability challenges, non-English literature is rarely reviewed and taken into account in English-language scientific knowledge production and publications. This review assesses how the scientific literature in Spanish conceptualizes and applies biocultural approaches, showing their richness beyond the Anglophone predominance in academic knowledge production and communication. The results suggest that insights from Spanish-language scientific literature could contribute alternative methodological and theoretical pathways for biocultural approaches that might foster transformations for more sustainable human-nature relationships. We conclude by highlighting avenues that could bring more plural biocultural studies.