Surname Titr (Titr 
, Titre 
) , worldwide, is quite a common last name. The family name Titr is characteristic of Dominica, where it is quite a common surname, India, where it is a rare surname, and Algeria. Measured by absolute frequency, this name is the most popular in India, the United States, and Algeria. Very seldom, Titr is the forename as well as the last name.