The issue of landfills represents a significant environmental challenge for the establishment of safe and healthy communities within Khartoum State, Sudan. The analysis of landfill suitability constitutes one of the most pivotal environmental concerns, governed by a multitude of restrictive criteria. Within Khartoum State, which encompasses three localities, there exists no landfill site that has been established through scientifically rigorous processes. This study aimed to identify appropriate locations for solid waste landfills by employing a Geographic Information System (GIS)-based Multi-Criteria Decision Analysis (MCDA). Nine criteria were developed to form the dataset. GIS spatial analysis (MCDA) methodology was utilized to amalgamate the relative weightings assigned to each criterion through a weight overlay technique. Each criterion possesses a weight that indicates its relevance to the selection of landfill sites. The findings revealed the emergence of five classifications regarding the suitability of sites for landfill selection, ranging from areas with very high suitability to those with low suitability.
