This chapter provides detail description of Contemporary endovascular treatment of intracranial aneurysms. Chapter has 6 well illustrated diagrams and pictures. Endovascular treatment of intracranial aneurysms, introduction and history of endovascular treatment of intracranial aneurysms, indications of aneurysms coiling, limitations of endovascular treatment, steps of endovascular coiling, post coiling management, equipment and disposable material, drugs used during the procedure, drugs used in adverse events, treatment of vasospasm, special considerations in endovascular aneurysm treatment, balloon remodeling catheters, coated / bioactive coils, new advances in endovascular treatment: stent grafts, complications: perforation, thromboembolism, device related issues and recanalization/recurrence are described in detail. 36 references are included at the end of the chapter to facilitate further reading.