Riana

Riana may refer to:


 * Rhiannon, the horse goddess in Welsh mythology
 * Riana Rouge, action-adventure game
 * Riana, Tasmania, a small town in Australia

People with the given name Riana

 * Riana Nel (born 1982) is a Namibian singer and songwriter
 * Riana Scheepers (born 1957), Afrikaans author
 * Marie Antoinette Riana Graharani, better known as The Sacred Riana (born 1992), Indonesian magician and illusionist; Asia's Got Talent (season 2) winner