What is the name for green apples?

There isn't one specific name for green apples. They can be many varieties, including:

* Granny Smith: Perhaps the most famous green apple.

* Golden Delicious: While yellow when ripe, they are green when immature.

* Pippin: A category of apples, many of which are green.

* Crispin: Another popular green apple.

* Braeburn: A green-red apple with a yellow undertone.

So, it depends on the specific variety you're talking about.