English Meaning: The name Tianna is an English baby name. In English the meaning of the name Tianna is: Abbreviation of Tatiana.SoulUrge Number: 11. Expression Number: 5. People with this name have a deep inner desire to inspire others in a higher cause, and to share their own strongly held views on spiritual matters.n English the meaning of the name Tianna is: Abbreviation of Tatiana. SoulUrge Number: 11. Expression Number: 5. People with this name have a deep inner desire to inspire others in a higher cause, and to share their own strongly held views on spiritual matters.