Primary hydatid cyst of adrenal gland is still an exceptional localization. The adrenal gland is an uncommon site even in our country in which echinococcal disease is endemic. We report two cases of primary hydatid cyst of adrenal gland presented with isolated abdominal pain. The diagnosis was based on CT-scan, which showed a cystic mass of respectively the right and left adrenal gland with a calcified wall. The echinococcal immunologic test (Elisa) was positive in one case. The surgical treatment consisted on a total resection of the cyst, without rupture of the cystic wall and preserving the gland. The diagnosis was confirmed on the macroscopic examination of the resected pieces. In the first case the cyst was multilocular filled with daughter cysts and in the second case the cyst was unilocular filled with hydatid membrane and clear fluid. In the two cases, the postoperative course was uneventful. No recurrence had occurred respectively after 24 months and 36 months of follow up.