Aneurysms of the celiac axis are rare, since only 50 cases were reported in 1976, 14 of which were operated on successfully. We report here the 15th case. This celiac aneurysm involved the origin of the splenic left gastric and common hepatic arteries. After controlling the aorta by a thoraco-phrenolaparotomy, the celiac artery was ligated at its origin, the anterior wall of the aneurysm was incised and the splenic and the left gastric arteries ligated by an obliterative endoaneurysmorrhaphy. The hepatic vascularization was restored from the gastroduodenal artery with a restorative endoaneurysmorrhaphy. The control arteriogram showed a good arterial revascularization.