We report a rare combination of valvular aortic stenosis, coronary atherosclerosis and numerous coronary artery aneurysms. A 80 year-old man with previously diagnosed aortic valvular stenosis was admitted to our department for coronary angiography before planned aortic valve replacement. Coronary angiography, apart from critical stenosis of proximal part of left anterior descendent branch of left coronary artery, revealed several large coronary artery aneurysms. We discuss the potential mechanisms responsible for coronary aneurysm formation.