<p>The trans-Golgi network is a major sorting organelle consisting of a tubular membrane originating from the trans-Golgi cisternae. Proteins and lipids synthesised in the endoplasmic reticulum are transported through the Golgi apparatus and sorted in the trans-Golgi network into pleomorphic transport carriers targeted for various destinations. These destinations include the apical and basolateral membranes, early and late, recycling endosomes, and secretory granules. The trans-Golgi network also accepts retrograde endosome traffic, contributing to the recycling of proteins and lipids, and, therefore, sits at the crossroads of secretory and endosomal systems. Cancer is a somatic evolutionary process that comprises the accumulation of mutations that contribute to tumourigenesis, growth, progression, immune evasion, and resistance to therapy. This study aims to catalogue how multiple components and players of the trans-Golgi network affect tumour progression. Further, the link between the tumour microenvironment, the trans-Golgi network, and tumour progression will be dissected. A more profound understanding of these mechanisms will inform better treatment options.</p>