Sunflower (Helianthus annuus L., 2n=34), one of the important oilseed crops of the world, is a rich source of edible oil and is considered good from cardiac health point of view. In this study, a total of 67 sunflower inbred lines comprising 55 restorer lines and 12 maintainer lines belonging to different geographical origins were evaluated for phenotypic divergence on the basis of eight agro morphological traits and oil content. Among the evaluated traits, days taken to initiation of disk floret opening, days taken to complete anthesis, days taken to physiological maturity, head diameter, plant height, autogamy per cent, 1000 seed weight, seed yield per plant and oil content revealed significant variation in the material under study. The data pertaining to these traits was subjected to D2 analysis which allowed grouping of the genotypes into nine cluster indicating genetic diversity in the material. The distribution patterns of the genotypes into different clusters indicated that grouping was not according to the source of genotypes. Cluster I has maximum number of genotypes (49). Inter cluster distance were higher than the intra cluster distances supporting the grouping of the genotypes. 1000 seed weight, plant height, initiation of flowering, autogamy per cent and oil content had greater contribution towards the observed genetic divergence. Selection of three CMS lines viz. 207A, 10A, 7–1A and five restorer lines viz. P83R, P81R, PISF-1R, LTRR-341 and R-17 from different clusters based on inter cluster distance and cluster mean values for hybridization is suggested.