Adaptability studies on the recently released linseed varieties were conducted in Debub Ari and Bena-Tsemay Districts in 2020 under rain fed conditions in South Omo Zone. The experimens were carried out using a randomized complete block design (RCBD) with three replications and six improved (Berene, Bekoji 14, Jeldu, Tole, Kassu-2, Kulumussa-1) varieties and were used. linseed were, Data on growth, yield and yield related parameters were collected and subjected to analysis using the general linear model procedures of SAS software Version 9.1. The combined analysis of variance result showed that there were significant differences observed among the varieties for the all tested parameters. Grain yield ranged from 1122.96 (kg ha-1) for variety Kulumussa-1 to 674.25 for variety Jeldu. Also, thousand seeds weight ranged from 9.00 (g) for the variety Kassu-2 to 7.58 (g) for the variety Berene. The effect of varieties on grain yield was significant and the best performing varieties of linseed namely Kulumussa-1(1122.96 kg ha-1) and Kassu-2(110.93 kg ha-1) would be recommended for the target areas and similar agro ecologies even though further study should be carried out including a number of recently released varieties for improved linseed production.