Ignacio Enrique Dávila

Why do people call you Nacho?

Nacho is the nick name for Ignacio.

At Spanish speaking countries, about 350 million people in the world, that is the way Ignacios are called.

In the same way that people named William are called Bill, people name Ignacio are called Nacho.

Ok, I got that.
Then, why tortilla chips are called nachos?

I had a theory, which I found out to be in the right direction.

Tortilla chips have existed in Mexico for quite a while; they have always been good to dip into refried beans or salsa, as a substitute for a spoon. We also know that there are several Mexicans living in US.

Therefore chances are that a Nacho (capital N) once served or prepared totopos for his friends or at a restaurant and after that they started calling them nachos, lower case n. (This story had been officially recorded at Oxford dictionary and Wikipedia.)

In the same way that bill is different from Bill, nacho is different from Nacho.