Solid waste management system is the most difficult task that many countries, both developingrnand developed, are facing. Landfill method is one of the easy and cheap management systemsrnwhich are always needed for sustainable management of solid waste. However, if not sited andrnmanaged properly, it will result in environmental pollution and public health problems. The openrndumping system that the city of Addis Ababa has been using is not environmentally sound andrnsocially acceptable as its location is in inappropriate site. Therefore, it is necessary to select newrnlandfill site for the city that is environmentally sound, socially acceptable and economicallyrnfeasible. The present study was conducted by integrating Geographic Information System andrnremote sensing for selecting suitable landfill sites. Factors such as geology, slope, depth tornground water table, permeability, land use/ land cover, proximity from roads, faults, airport,rngroundwater well and streams/rivers were used for selecting suitable landfill within the studyrnarea. GIS-based Multi-Criteria Evaluation methodology was followed to have advantages of bothrnGIS and Multi-Criteria Evaluation method and solve spatial decision making problems. All thernfactor maps were reclassified and standardized in GIS environment followed by preparation ofrntheir suitability map. Analytical Hierarchy Processes pair-wise comparison module was used tornderive internal and external weights for all factor parameters and factors respectively. Morernweight was given to groundwater related criteria so as to protect groundwater pollution fromrnlandfill negative effects. Weighted Linear Combination was also used to integrate the factor mapsrnand produce overall landfill suitability map. Accordingly, 40.5km2(7.7%), 68.7km2(13%),rn0.7km2(0.01%) and 417.8km2(79.3%) of the total study area is highly, moderately, marginallyrnand unsuitable for landfill respectively. Among the highly suitable landfill sites, those with arearngreater than 0.5km2 were also evaluated against other criteria like area, distance from the centerrnof the city and distance from nearby settlements so as to choose the most suitable landfill sites.rnAnalytical Hierarchy Processes was applied again to compare and derive weight for the 12rncandidate sites in relation to those evaluating criteria. Landfill site 2 which is located in thernnorth eastern part of the city in Yeka sub-city, north of road to Dessie is chosen as the mostrnsuitable site, because of the larger area and optimum distance from the nearby settlements andrnfrom the center besides their fulfillments of the environmental and socioeconomic factors setrnbefore. Landfill site 11 (located in the south eastern part in Bole sub-city) and landfill sitern1(found in the northern part of the city in Yeka sub-city) is the second and third most suitablernsites respectively due to their larger area and/or distance from nearby settlements and centerrnthan the rest of the sites. Landfill 11 is more suitable than landfill 1 due to its safe location fromrnnearby settlements. Therefore, landfill sites 2, 11 and 1 are ranked from 1 to 3 based on theirrnarea and distance from the center and nearby settlements compared to the other sites hence theirrnnegative effects on the environment and public heath will be minimum.rnKey Words: Landfill, Multi-Criteria Evaluation, Addis Ababa Solid Waste Management, GIS,rnRemote Sensing.