Tiana

• Tiana, Catalonia, a town in the comarca of Maresme, Catalonia, Spain
• Tiana, Sardinia, a comune (municipality) in the Province of Nuoro, Sardinia, Italy

• Tiana Alexandra (born 1961), Vietnamese-American actress and film director
• Tiana Benjamin (born 1984), British actress
• Tiana Brown (born 1981), American dancer
• Tiana Coudray (born 1988), American equestrian and dancer
• Tiana Lemnitz (1897–1994), German operatic soprano
• Tiana Mangakahia, Australian basketball player
• Tiana Ringer (born 1985), inactive American professional wrestler
• Tiana Xiao (born 1990), Japanese pop singer

• Alternate name for Teana Lanster of Magical Girl Lyrical Nanoha Strikers
• The main character in the 1996 novel The Book of Ti'ana
• Tiana (The Princess and the Frog), a fictional character in a 2009 Disney film, The Princess and the Frog
• Tiana, one of the minor antagonists in the anime series, Tweeny Witches

Tyana may refer to:

• Tyana or Tyanna was an ancient city in the Anatolian region of Cappadocia, in modern south-central Turkey
• Tyana (moth), a genus of moths of the family Nolidae
• Tyana falcata, a species of moth of the family Nolidae

• Tiana (TV series), an upcoming animated series based on the 2009 Disney film, The Princess and the Frog