Introduction: Research on depression and emotional distress related to diabetes is limited, despite significant research activity in this area being evident from recent literature. However, it is crucial, as indicated by recent findings, to examine this correlation, which may be linked to the improvement of the quality of life of patients with diabetes. Aim: The aim of this study was the analysis of depression and emotional distress related to diabetes. More specifically, it sought to delve deeply into the psychological aspects accompanying the management and experience of diabetes, shedding light on the potential emotional burdens and distress that individuals with this condition may face. Materials and Methods: This review utilized existing literature and scholarly databases such as Google Scholar and PubMed, as well as empirical studies concerning mental health. The study was conducted in Greece from September 2023 to February 2024. Results: Despite their similarities, depression and emotional distress related to diabetes are distinct conditions for mental health and require different evaluation and management strategies. Diabetes-related distress encompasses emotional experiences that overlap with several recognized mental health conditions, such as depression. Conclusions: In contrast to depression, diabetes-related emotional distress is not a psychopathological condition. It is an expected response to the diagnosis and management of diabetes, while depression refers to how people feel about their lives in general.