We present a rare case of an abdominal aortic aneurysm (AAA) infected with Campylobacter fetus. The patient presented with abdominal pain and leukocytosis, without a palpable AAA. Computed tomography (CT) of the abdomen showed a 3.1 x 3.0 cm infrarenal abdominal aneurysm with an extra-aortic fluid collection. At surgery, an in situ graft was placed. Intraoperative aortic wall cultures grew pansensitive C. fetus, and blood cultures remained negative. At 9-month follow-up, the patient was doing well without complaints. To our knowledge, this represents only the ninth reported case of an AAA with an aortic wall culture positive for C. fetus.