How many lukes are in the world?

It's impossible to know the exact number of people named Luke in the world. There's no central database tracking names across all countries.

However, we can make some educated guesses:

* Popularity: "Luke" is a relatively common name, especially in English-speaking countries.

* Variations: There are variations of the name, like Lucas, Luca, etc., which would also need to be considered.

* Global distribution: The name's popularity might vary across different cultures and countries.

Therefore, a precise number for the "number of Lukes in the world" is not possible.