Abstract: Evaluation of potato germplasm was carried out in Sharan, Kaghan valley against late blight. Results of the trial presented in the tables 1and 2 revealed that the CIP clone, 387348-20 showed maximum resistance against late blight with rating scale 3. Other three clones (383120-14, 387315-27 and 387015-13) were found resistant to late blight with score 4, as late blight infection was less than 50%. Two clones, 382178-14 and 381245-5 reflected 50% resistance with late blight score of 5. Other clones were found highly susceptible to late blight with late blight score of more than 50%. Some clones having late blight resistance may replace the existing varieties to save the chemical expenses to control late blight of potato crop at farmers` field.