Semaglutide, a glucagon-like peptide-1 receptor agonist, has emerged as a pivotal therapeutic agent in the management of the cardio-renal-metabolic continuum. Initially developed for glycaemic control in Type 2 diabetes mellitus, its benefits extend far beyond glucose regulation. Clinical trials have demonstrated semaglutide's potential to reduce major adverse cardiovascular events, particularly in overweight/obese patients with high cardiovascular risk, as well as improving functional capacity in patients suffering from heart failure with preserved left ventricular function. Additionally, it has shown promise in improving renal outcomes, such as slowing the progression of albuminuria and reducing the risk of chronic kidney disease in diabetic populations. These effects are likely due to its multifaceted mechanisms, including anti-inflammatory properties, weight reduction, blood pressure lowering, and direct renal protection. This review synthesizes current evidence on semaglutide's role in the interrelated domains of cardiovascular, renal, and metabolic health.