The Mischief Managed Dog Sweater – Free Knitting Pattern

harry potter weasley dog sweater

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Are you a fan of the Harry Potter characters?

I just love the knitted sweaters that Mrs Weasley makes for Ron and Harry – with their initials worked into the front.

Then you will love this knitted dog sweater that has been made with inspiration from Mrs Weasleys knits.

Make your dog their own ‘mischief managed‘ sweater with this easy knitting pattern.

If there is any dog that knows how to create mischief all day every day it is our dog, Jason! He is probably the naughtiest liveliest dog you will ever meet.

He makes the dog from the Marley movie look really well behaved. He’s a really naughty Weasley and so he needed a sweater to reflect that.

Jason looked every inch the Weasley at Hogwarts in this Harry Potter inspired sweater.

free dog sweater pattern

DIY Dog Sweater

I had been watching the Harry Potter movies over Christmas and had a thought that with Jason being ginger – he would look awesome in a Weasley knit sweater.

I admit I haven’t read the Harry Potter books in years, I really need to re-read them all again.

This chunky knitted ‘Mischief Managed’ dog jumper is an easy pattern to follow, knit mainly on straight needles and the sleeves completed with circulars.

It has ribbing for the neckline and edge of the sweater, with stockinette stitch for the main part.

Knit with 12mm (US 17) straight/circular knitting needles and chunky yarn, the sweater is a good pattern for beginner knitters as well as the more experienced.

If you would like to make more knitted items for your dog, please take a look at the other patterns in the pet knitting pattern library.

*There is an easy to print – download PDF version of this pattern at the end of the post. 


harry potter dog sweater knitting pattern

Knit Dog Sweater Pattern

The knitting pattern is an easy level pattern for beginners, using basic knit and purl stitches, with increases and decreases to shape.

Materials >

  • 3 balls of chunky yarn I used Hayfield Super Chunky With Wool in shade 0053 – Hollyhocks
  • Yarn in a coordinating colour (mustard) for the stitched letter in the same yarn type.
  • Set of 12.00mm (US 17) circulars / set of 12mm (US 17) straight needles
  • Darning needle/scissors/tape measure

Measurements >

Jason is a medium sized dog and weighs about 21 kilos.

The back piece of the sweater measures – length = 28″ / width = 12″

Chest piece – length = 23″ / width = 9″

Sleeves – length = 3″ / width = 6″

To adapt for your dog – measure the length and width of the back / chest and adjust the pattern according to their measurements.


Back Piece >

With 12mm (US 17) straight needles, and the Hayfield – hollyhocks yarn cast on 30 sts

Work in ribbing – K2, P2 until piece measures – 4.5″

Next row – Knit

Next row – Purl

Continue to knit 1 row/purl 1 row (stockinette stitch) until piece measures 21″ from cast on edge

Then work in ribbing to finish the back edge – K2, P2 for 2.5″

Cast off in rib.


Chest Piece >

With 12mm (US 17) straight needles, and the Hayfield -hollyhocks yarn cast on 16 sts

Work in ribbing – K2, P2 until piece measures – 4.5″

Next row – Knit

Next row – Purl

Continue to knit 1 row/purl 1 row (stockinette stitch) until piece measures 16″ from cast on edge

Then work in ribbing to finish the back edge – K2, P2 for 2.5″

Cast off in rib.


harry potter font

Harry Potter Font

Embroidered Letter >

For the embroidered letter, I looked at the Harry Potter font and sketched out my J. I marked it out on the sweater with stitch markers as a guide, then began to stitch it with mustard yarn over the top of the V-shaped stitches.

It’s not the neatest stitching you have ever seen and some clever knitters out there will probably be able to adjust the pattern to make the letter intarsia.

Here is the Harry Potter font so you can see what your chosen letter may look like >>


Making Up >

To make up the sweater – first, stitch the letter onto the back piece

Then place the back piece and chest piece together with the right sides back to back

After that stitch from the neck down on both sides for 7″

Leave 6″ leg holes then stitch again for 5.5″

Weave in any loose ends, then prepare to make the sleeves.


Sleeves >

With the sweater inside out ->

With 12mm (US 17) circular needles, and the hollyhocks yarn pick up and knit 30 sts

Knit every row until the sleeve measures 3″

Cast off.

Weave in all loose ends


Abbreviations >

Approx = Approximately

Beg = Begin(ning)

Cont = Continue(ing)

K = Knit

K2tog = Knit next 2 stitches together

P – Purl

M1 = Make 1 stitch

Rem = Remaining

Rep = Repeat

Rnd(s) = Round(s)

SKPO – Slip one, knit one

St(s) = Stitch(es)


Harry Potter Quote

Mischief Managed!

“‘Right,’ said George briskly, ‘don’t forget to wipe it after you’ve used it –’

‘– or anyone can read it,’ Fred said warningly.

‘Just tap it again and say, “Mischief managed!” And it’ll go blank.’

‘So, young Harry,’ said Fred, in an uncanny impersonation of Percy, ‘mind you behave yourself.’

‘See you in Honeydukes,’ said George, winking.

They left the room, both smirking in a satisfied sort of way.”

— HARRY POTTER AND THE PRISONER OF AZKABAN BY J.K. ROWLING

Just like Fred and George Weasley, Jason is forever creating mischief and making us laugh.

I hope you have enjoyed this dog sweater pattern and have lots of fun knitting it and seeing your furry friend wearing it!


*If you would like to download an easy to print PDF version of this pattern please click on the button below >


For any help with the knitting stitches please visit the video tutorials page here >

Happy Knitting!


If you want to help the animals of Corfu, here’s how you can get involved >

There are many animals in need here on the island of Corfu, Greece – including many kittens and puppies who get left in the trash, by the roadside or on the beach.

If you want to help out an organisation that really works hard to save as many animals as possible and get them re-homed – you can help the ARK here >

The ARK help to make the animals healthy so they can be re-homed and this incurs a great cost, with vet bills reaching into the thousands.

If you can help in any way – the animals of the island will thank you from the bottom of their little hearts.

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