In the past decades, a large number of human life and enormous properties have been lost inrndifferent parts of the world due to flood hazard. Flooding is a common problem in differentrnparts of the world including Ethiopia. Itang Woreda, which is located in Gambella Region ofrnEthiopia is one of the areas affected by flood of different frequency and magnitudes. This thesisrnis proposed with the aim of assessing and mapping flood hazard of Itang Woreda. Heavyrnrainfall from the region and surrounding highland areas is the major cause of flooding in Itang,rnby increasing the discharge level of streams and big rivers and making them overflow intornadjacent flood pains. Baro River, which cross the study area from east to west and flow downrnto South Sudan is the major cause of flooding in this Woreda. Flood frequency of differentrnrecurrence intervals was calculated through the use of the most commonly used flood frequencyrnanalysis, i.e. Gumbel and Log-Pears type III. After obtaining the discharge level from thernmethod with Chi Square test, flood inundation area of the 5, 10, 25, 50 and 100 year recurrencernintervals were mapped. By using of remote sensing and GIS as a tool and slope and elevation,rnland-use/land-cover, rainfall data, discharge data and the soil type as input, the nature andrncharacteristics of the flooding in Itang was analyzed. Finally, after evaluating and giving weightrnfor the above mentioned criteria based on Analytic hierarchy process, flood hazard zones werernmapped. Based on the results, the study area was classified into zones such as very high, high,rnmedium, low and very low flooding and these zones were mapped. Majority of the land surfacernof the study area fall in the medium hazard zone (29.7%), followed by high flood hazard zonern(27.8%), very high (12.7%), low (18.5%) and very low (11.4%), respectively. These maps arernvery useful to reduce the damages and losses that might arise from flooding. It is alsorninhabitants, and floodplain management authorities to minimize flood damage and loss ofrnhuman lives in the study area.