Neutrino Mass Models and their Connections with other Physics Beyond the Standard Model

Through the use of three case studies, I will explore the possible connections between neutrino mass models and baryogenesis via leptogenesis, Higgs physics, dark matter, the strong-CP problem, and the currently tantalising flavour anomalies. This will highlight the theoretical importance of uncovering the origin of neutrino mass generation, and argue for the relevance of a broad experimental program in the quest to reveal the mechanism.