What is the scientific name for wild turkeys?

The scientific name for the animal called a turkey is Meleagris gallopavo.

The name "Turkey" comes from the country of Turkey. When Europeans first discovered turkeys in America, they incorrectly identified the birds as turkey fowl (or turkey hen and turkey cock), due to that bird's importation to Central Europe through Turkey.

That name was shortened to the name of the country, stuck as the name of the American bird.