Cyber Threat Intelligence (CTI) has emerged as a critical field within cybersecurity, enabling organizations to proactively detect, assess, and respond to evolving digital threats. Traditionally perceived as a technically intensive field, CTI increasingly demands a broader set of competencies that extend beyond the confines of traditional sciences that are relevant to CTI. Such competencies include behavioral analysis, geopolitical awareness, investigative thinking, and effective communication. As the threat landscape grows more complex and intertwined with social, political, and psychological dimensions, there is a growing need to clearly establish the disciplinary foundations that can support the CTI profession. This study addresses this need by investigating the multidisciplinary nature of CTI, identifying which academic disciplines outside traditional technical fields can contribute to CTI practice and how. The investigations identified five academic disciplines (criminology, psychology, political science, journalism, and data science) as having potential relevance to CTI. Using these disciplines as a basis, the study investigated their alignment with core CTI knowledge areas and transferable skills identified as part of the investigations, drawing on two skills frameworks: ENISA’s European Cybersecurity Skills Framework and Mandiant’s CTI Analyst Core Competencies Framework. The findings offer insights into how diverse academic backgrounds can support CTI functions, challenge existing assumptions about career pathways into CTI, and propose future research directions for developing more inclusive and multidisciplinary training strategies. In doing so, the study contributes to a growing body of research advocating for a multidisciplinary approach to cybersecurity workforce development, where diverse expertise is recognized as a strength rather than an exception.