In Najaf Governorate, Iraq, there are five landfill sites. This study aims to rank these sites based on their criteria which are
site capacity, land elevation and land price. AHP (analytic hierarchy process) method was used to weight the criteria and the technique
for order preference by similarity to ideal solution. Fuzzy TOPSIS (technique for order of preference by similarity to ideal solution)
method was used to rank these sites from best to worst. Based on AHP method, the site capacity criterion was the most important than
land price and land elevation.
Key words: Najaf Governorate, Iraq, AHP, TOPSIS.