This chapter provides detail description of Implantable hearing aids. Abstract of the chapter is given in the beginning. Chapter has 12 well illustrated diagrams and pictures. Active middle ear implants, vibrant soundbridge, vibrant soundbridge for sensorineural hearing loss, Incus vibroplasty, vibrant soundbridge for conductive/mixed hearing loss, middle ear transducer and carina, esteem surgery, Maxum device, Retrox device, Retrox surgery, imaging and active middle ear implant are described in detail. One flow chart is included to highlight selection of an implantable device.18 references are included at the end of the chapter to facilitate further reading.