Quantification of variability is the most essential pre-breeding tool in any crop improvement. The present investigation was carried out to assess the variability existing in twenty-four diversified cucumber genotypes. The results revealed high phenotypic and genotypic coefficients of variation for yield per plant, fruit flesh thickness, number of fruits per plant, number of nodes per plant, number of branches per plant, average fruit weight, internodal length and vine length. High heritability coupled with high genetic advance as per cent mean was recorded for all the characters studied except for days to first female flower anthesis, days to fifty per cent flowering and days to first fruit harvest indicating that there is scope for improvement through the selection. Genotypic correlation coefficients were higher than phenotypic coefficients indicating the inherent relationship among the characters studied. Further the path analysis showed high direct effects of number of fruits per plant, average fruit weight, fruit moisture per cent, number of seeds per fruit and fruit cavity on fruit yield of cucumber emphasizing the worthiness of incorporation of these traits in improving cucumber yield.