This easy plus size Harry Potter costume fits right in with my on-the-fly lifestyle. I've worn it for Halloween. But I've also worn it for themed events and even a concert where we dressed up as our favorite characters. (Most of the old people didn't know who I was!)
If you're looking for an easy plus size Harry Potter costume, you can throw one together pretty easily.
Disclosure: Some of the links in this post are affiliate links. This means if you click on a link and purchase an item, I will receive a small commission, at no extra cost to you.
- Wear a Hogwarts house shirt.
- Get a matching scarf or necktie (doesn't have to be officially licensed, just the right colors).
- Carry a wand.
That's pretty much it! The piece de resistance of my easy Harry Potter costume was my mask, which I bought from Tomboy Togs.
Check out pictures and more details below. Busy? Pin this to your Pinterest board for later.
I dress up every Halloween when I take my kids trick or treating. (Although, they might be too old this year. Oh, calamity!) One year I wore my witch's costume that looks a bit like Professor McGonagall. One year I wore my Supergirl t-shirt that has its own cape (along with some snazzy red satin slacks). One year I even went as Lumpy Princess. That costume was a little creepy, thanks to the inanimate purple mask.
This easy plus size Harry Potter costume is the one I wear the most because it's, well, so easy!
It helps that I have a good friend who made the mask for me at the last minute. I asked Emily Bowman, of Tomboy Togs, if she could whip up a mask only a few days before trick or treat night. She did! She has lots of other masks, but of course, I think the Harry Potter mask is the best one.

People really get a kick out of this costume. My friends and family get a little freaked out by the mask, for some reason.
The only time my costume fell flat was when I wore it for a performance with the Lancaster Symphony Chorus. We were singing on Halloween, so they let us dress up. If you know anything about local choruses, you know that most of the members are AARP-age and up. They had no idea who I was. One gentleman even said “Potter?” when he read the back of my Quidditch jersey. I was like, “Um, HARRY POTTER?” He had no clue. How is that possible!
Where to Buy
Like I said, you can buy the Harry Potter mask from Tomboy Togs on Etsy.
You can find Gryffindor scarves everywhere, especially at the official Harry Potter store. Mine was a gift from the tour guide when I took a Harry Potter tour of England and Scotland. (Heaven!)
I bought the Quidditch shirt on a different trip to England. I talk about that here.
If you put together your own easy Harry Potter costume, be sure to post a pic and tag @plussizenerd so I can share it!
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