Cognomen 蒂拉 (Tyra 
, Tierra 
, 蒂拉 
) , around the world, is quite a common last name. The last name 蒂拉 is habitual in Guatemala, where it is quite a rare surname, Philippines, and Spain, where it is a rare surname. Measured by absolute frequency, it is commonest in Philippines, the United States, and Spain. More prevalently, 蒂拉 is the forename as well as the last name.