A field experiment was designed at the research site of Werer Agricultural ResearchrnCenter in the 2007/8 cropping season to assess genetic divergence and characterrnassociations among 13 agro-morphological traits of 100 local and exotic sesamern(Sesamum Indicum L.) genotypes. The result indicated the existence of a wide variabilityrnamong the genotypes for all the measured characters. The highest PCV and GCVrnestimates were observed for oil yield per plant (54.47%, 37.30%) followed by seed yieldrnper plant (54.23%, 35.77%), number of primary branches (42.93%, 32.37%) and distancernto the first pod (41.69%, 26.01%), respectively. More than half of the characters showedrnheritability (broad sense) values of greater than 50% and higher estimates of heritabilityrnvalues were recorded for days to flowering (62.45%) followed by number of primaryrnbranches (56.68%), 1000 seed weight (56%), capsule length(55%), days to maturityrn(54.865) and oil content (53.10%). Higher values of genetic advance that could bernexpected from selecting the top 5% genotypes, as percentage of mean was recorded forrnoil yield per plant (92.84%) followed by number of primary branches (50.31%) and seedrnyield per plant (48.64%). Higher estimates of broad sense heritability together with highrngenetic advance was observed for number of primary branches, number of capsules andrnseed yield and oil yield per plants, indicating the possible preponderance of additive genernaction. Seed yield had shown significant and positive PCC and GCC with number of podsrnper plant (0.849, 0.967), thousand seed weight (0.744, 0.865), oil yield per plant (0.997,rn0.998), plant height (0.326, 0.263) and oil percent (0.361, 0.551) while, it had significantrnbut negative PCC and GCC values with number of seeds per pod (-0.281,-0.585) andrndays to flowering (-0.369, -0.454) respectively. Path analysis of seed yield revealed thatrnnumber of pods per plant and number of primary branches had a positive direct effect onrnseed yield. Yield components 1000 seed weight, plant height and days to 50% floweringrnhad negative values of direct effects although seed yield was counter balanced by higherrnpositive indirect effects exerted through number of pods per plant, plant height and daysrnto 50% flowering. Path analysis was also computed using oil yield as a dependantrncharacter and characters number of pods and seed yield per plants had positive directrneffects on oil yield per plant. On the other hand negative direct effects were observed forrn1000 seed weight and oil content, however these negative values were found to berncounter balanced by positive indirect effects of the other component traits. The principalrncomponent analysis was performed and the first three principal components were foundrnto explain 73% of the overall variability existing among the test entries. The majorrncontributing factors for the total variability were found to be days to 50% flowering, daysrnto maturity, distance to the first pod and number of primary branches in order ofrnimportance. Cluster analysis grouped 100 genotypes into eight diversity groupsrncontaining 39, 43, 3, 9, 3 genotypes in that order while, the remaining three clusters hadrnsingle accession each signifying the fact that efficient germplasm management can bernachieved through avoiding redundant accessions. Generally the study had shown thernexistence of high genetic diversity among the evaluated accessions that could be utilizedrnfor future breeding programs. Further investigations are needed to study the diversity ofrnthe crop at molecular levels to ascertain the finding of this study.