Twenty five linseed genotypes were subjected to study the genetic variability at the Experimental Farm of the Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, during rabi 2013-2014. Analysis of variance revealed that the differences among all the genotypes were significant for all the traits. The phenotypic variances (PV) are slightly higher than the genotypic variances (GV) indicating high genetic variability for all the traits. High estimates of PCV and GCV were obtained for fibre yield, straw yield, biological yield per plant and seed yield per plant, indicated a good deal of variability in those characters signifying the effectiveness of selection of desirable types for improvement. High heritability was observed for all the traits indicated that the characters under study are less influenced by environment in their expression. All the traits except plant height under study showed low genetic advance. High heritability coupled with high genetic advance as percentage of mean (GAM) were observed for technical height, biological yield per plant, fibre yield, straw yield per plant and seed yield per plant, indicating predominance of additive gene action for these characters. Hence, simple selection based on phenotypic performance of these characters would be more effective. The cluster analysis showed that the genotypes were placed into four clusters, showing inter-cluster divergence, which is important for future hybridization programme for getting desirable transgressive segregants.