Introduction: True incidence of renal artery aneurysms is unknown but it has been estimated to be around 1%. They are usually asymptomatic and diagnosed through imaging studies done for other medical reasons. Those that are more than 2 cm in diameter or any aneurysm in pregnant women should be treated because of an elevated risk of rupture. We present a case of a man with a complex 2.5 cm renal artery aneurysm, successfully treated with ex vivo repair and reimplantation by a multidisciplinary team.