This paper aims to analyse the state of the art on innovation at an individual level and, more specifically, on innovation competencies, proposing the main definitions, classification of studies, and suggestions for future research. A systematic literature review was developed, with the qualitative and quantitative evaluation of 63 academic papers. We advance the literature by systematising the literature and highlighting the existence of two perspectives that address individual innovation competencies (IIC). One perspective that addresses aspects of the individual’s personality and psychological factors (individual innovativeness) and other related aspects of the individual’s observed behaviour and their practices and tools that allow them to be innovative (individual innovation capability). Furthermore, based on the systematic review and resulting analyses, opportunities for future research linked to the forms of evaluation, the antecedents, and consequences of IIC, as well as the context in which the research is carried out, are pointed out.