Groundwater resources are under increasing pressure due to overexploitation and inadequate planning, particularly in rapidly urbanizing areas. Mapping groundwater recharge suitability provides spatial information that can support groundwater protection planning and the evaluation of areas that may be favorable for future groundwater development. Iligan City, a major urban and industrial center in Northern Mindanao, Philippines, has experienced steady population and economic growth, placing increasing pressure on local water resources. Despite this, spatial information on groundwater recharge suitability within the city remains limited. This study delineates groundwater recharge suitability zones in Iligan City by integrating an Analytic Hierarchy Process (AHP)–based multi-criteria decision analysis with geospatial techniques. Seven parameters—geology, land cover, slope, lineament density, rainfall, drainage density, and soil—were evaluated and weighted using a consistency-controlled AHP procedure implemented through the Weight Assessment Tool for Evaluating Recharge Suitability (WATERS) decision-support tool. The derived weights were incorporated into a GIS-based weighted overlay analysis to generate a groundwater recharge suitability map classified into five relative suitability classes. High and extremely high recharge suitability zones cover 49% and 37% of Iligan City, respectively, whereas the moderate, low, and extremely low classes account for 13.91%, 1.05%, and 0.02% of the area. Overlay analysis using 133 pumping well locations shows that approximately 83% of wells are located within high to extremely high recharge suitability zones. The consistency-controlled AHP–GIS framework integrates real-time consistency assessment and guided revision of expert judgments into groundwater recharge suitability (GRS) mapping and generates spatial information to support evidence-based groundwater planning aligned with Sustainable Development Goal 6.