What is last name from My Little Pony Friendship Magic?

It's impossible to give a single "last name" for characters in My Little Pony: Friendship is Magic because the ponies in the show don't have last names! They are primarily identified by their first names and sometimes by their cutie marks.

For example, we have:

* Twilight Sparkle

* Rainbow Dash

* Pinkie Pie

* Fluttershy

* Applejack

* Rarity

There are a few exceptions, like:

* Princess Celestia and Princess Luna, who have titles instead of last names.

* Spike, who is a dragon, but still doesn't have a last name.

So, while there are no official last names in My Little Pony: Friendship is Magic, the characters are easily recognizable by their first names and unique personalities.