Obliquus Accessorius Inferior
Obliquus Externus
Obliquus Inferior
Obliquus Internus
Obliquus Superior
Obturator Externus
Obturator Internus
Occipitalis Minor (Transversus Nuchae or Occipital Transverse)
Occipitofrontalis
Occipitopharyngeus
Occipitoscapularis
Omoclavicularis
Omohyoideus
Opponens Digiti Minimi
Opponens Hallucis
Opponens Pollicis
Orbicularis Oculi