Is Alice from wonderland a disney princesses?

Nope, she's a Disney heroine like Megara, Esmeralda, Kida, Anna, Elsa and others

No, Alice isn't a Disney Princess, she's a Disney Heroine.

The Disney Princess (or DPs) are in order;
Snow White
Cinderella
Ariel
Belle,
Jasmine
Pocahontas
Mulan
Tiana
Rapunzel
Merida

Anna and Elsa were suppose to شامل میں but because Frozen got so popular, they never did. Moana might join, but that's yet to be seen.

As for the difference between DPs and Disney Heroine (DHs) are;

1. Most of the DPs فلمیں have done well at the box office. There's one یا two DPs فلمیں that didn't do well, but are still well known. As for the DHs, their moves are either not that well known (Hercules) یا too dark (The Hunchback...)

2. The DPs either start out as princesses (Snow White, Jasmine) یا are made princesses سے طرف کی the end of the film (Cinderella, Belle). Mulan and kinda Pocahontas don't really follow this one.
However, Mulan is included because the line-up needed a Chinese person, because she's saved China and also because The Emperor in the movie مزید یا less کہا she now had high status because of her actions.
As for Pocahontas, she's kinda sorta a princess if آپ twist it around a bit.

I'm sure they're مزید differences, but those are the biggest ones (I think).