This study analysed the Spatial Assessment of Land use/Land Cover Dynamics From 1988 To 2018 In Bonny LGA, Rivers State, Nigeria using Landsat imageries of 1988, 2000, 2003, 2016 and 2018 with the aid of Remote Sensing (RS) techniques and Geographic Information System (GIS). Five land use/land cover types where analysed: Waterbodies, Forest, Mangrove/Swamp, Built Up Area/Bare Surfaces and Muddy Surface. The results show that from 1988 to 2018, water bodies, forest, and mangrove/swamp reduced by

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... 5.14%, 25.07%, and 38.28% respectively while built-up area/cleared lands and muddy surface increased by 69.42% and 682.24%. Findings show that spatial coverage of forest and mangrove/swamp decreased between 1988 and 2018 and the reduction in forest cover reduces the significant role that it plays in maintaining the ecosystem. This study has clearly shown the roles of geo-information technologies at monitoring land use/landcover change in Bonny LGA, Rivers State and therefore, recommended that re-afforestation projects, strict legislation, policies, and strategies should be established to replenish the forests and mangrove/swamp; should be put in place.