Cognomen Маккенна (Mckenna 
, Mackenna , Маккенна 
) , all around the world, is a common last name. The cognomen Маккенна is habitual in Northern Europe, particularly Ireland, where it is a common surname, Guernsey, where it is quite a common surname, and the United Kingdom (explore the name in all countries). Not in comparison with a country's population, it is commonest in the United States, the United Kingdom, and Ireland. Much less frequently, Маккенна is the forename as well as the last name.