Cognomen Tä (Tä 
) , in the world, is quite a rare last name. The last name Tä is habitual in Northern Africa, particularly Algeria, where it is quite a rare surname, Egypt, where it is a rare surname, and Tunisia. Measured by absolute frequency, the name is most common in Northern Africa, particularly Algeria, Egypt, and Morocco. Also, Tä is the forename as well as the last name.