The coexistence of intracranial aneurysms and a meningioma is not a clinically common phenomenon. Here we present the case of a meningioma of the left anterior clinoid process concurrent with a right clinoid aneurysm and a ruptured aneurysm of the left posterior communicating artery (PcomA). Immediately after radiographically establishing a diagnosis of multiple aneurysms and to reduce the risk of rebleeding, we performed a microscopic surgery to clip the aneurysms using a left frontotemporal approach. During the surgery, an unexpected clinoid meningioma was detected and simultaneously resected. The patient tolerated the entire procedure well and reported no postoperative neurological deficits during the follow-up visit. The use of modern microsurgical techniques along with an appropriate approach ensured that the procedure remained both successful and safe.