How many tierneys are there in the world?

Answer 1

Worldwide figures are not available, but in the United States there are 15,677 people with the last name Tierney as of September 2014. Some famous people with the last name Tierney are Gene, Jacob, John, and Lawrence Tierney.

Answer 2

There is no exact number of people named Tierney in the world as it varies based on birth rates, population size, and naming trends. Tierney is a relatively uncommon name, so the total number of people with that name may be relatively small compared to more popular names.