Cognomen טרוקל (Trockel 
, טרוקל 
) , in the entire world, is a rare last name. The surname טרוקל is habitual in Germany, where it is a rare surname, Finland, where it is a very rare surname, and Israel. In absolute terms, it is commonest in Germany, the United States, and Finland. Very seldom, טרוקל is the forename as well as the last name.