Provided are a solar cell and a method of fabricating the same. The solar cell may include a first electrode including a first substrate attached with a first transparent conductive film and a metal oxide nanotube provided on the first substrate and adsorbed with a dye, a second electrode facing the first electrode, and an electrolyte filling between the first and second electrodes. In example embodiments, metal nanoparticles may be provided on an inner surface of the metal oxide nanotube.