Genuinely free, full-instruction crochet pet harness patterns are surprisingly hard to find online, most “roundups” of this topic end up linking the same handful of sources. After checking dozens of leads, these are the real ones: five with full written instructions, and six video tutorials from designers around the world (Spanish, Korean, and Portuguese-language channels included) who never wrote up a blog post but do walk through the full construction on camera. Open each source before choosing one, and note that a harness is one project where getting the fit right matters more than exact yarn substitutions.
A hook you already know well and cotton yarn, since it won’t stretch out under a leash pull the way acrylic can, cover most of what these patterns ask for. A few also call for small metal D-rings or a buckle, which you’ll need to source separately since they’re hardware, not yarn.
Pet harness patterns to explore
1. Max’s Dog Harness
Sara Sach’s Max’s Dog Harness is worked in worsted weight (4) yarn, in any colors you have, with a video tutorial on her YouTube channel. You start with the belly band at the bottom (chain 61, 55, 49 or 43 depending on size, where 3 chains equal 1 inch) in half double crochet, and the pattern uses only chain, single crochet, slip stitch and half double crochet. It needs two 1 inch D-rings and a tape measure, and you finish with single crochet trim around all the edges. Sizes are approximate, so measure your dog first.
2. A Crocheted Dog Harness for Your Tiny Dog
Pixie HeartStrings designed this harness for her own tiny Chorkie, Rosie, who weighs less than 5 pounds and has an 8 inch neck and a 13 inch chest. She put the harness on and off Rosie several times while making it to be sure of the fit, and she says you may need to add or remove rows for your own dog. Making your own harness let her customize the fit after wasting money on ones that didn’t fit. It was posted in April 2015.
3. Easy Dog Harness
Luvs2knit made these for her Shih Tzus, and it is a step-in harness: the dog puts its feet through and the hook sits on top of the back. The pattern is written for the smaller harness that fits her multicolored Shih Tzu, Babe, better. It uses an H hook and Red Heart Comfort worsted weight yarn, starting with a chain of 41 and working single crochet rows. It was posted in 2009, so the page is older, and the rows can be repeated to adjust the fit.
4. Quick and Easy Dog Harness
Crochet With Julie’s harness is made from Lily Sugar’n Cream worsted cotton, which she says shouldn’t stretch when pulled, and she describes it as gentle and a good fit for dogs who don’t fit traditional sizes. It uses an F/5 (3.75 mm) hook and two 2 inch metal rings (any size or shape will do). You size the strap to fit comfortably around your pet, taking the size of the rings into account, and there is a video tutorial for the stitches.
5. Simple Small Dog Harness
StringsandThingsByJoyce offers a genuinely minimal pattern for small dogs, gauge isn’t critical, and it’s a free download on Ravelry rather than a blog post. Worth including for how little it asks of you: a tape measure, a 5mm hook, and yarn, nothing else.
6. XXS Teacup Size Dog Harness
Kaylin Cierra Rose made this one out of necessity: her 5-pound dog Bambi had outgrown a harness meant for a kitten and couldn’t find anything smaller made for dogs specifically. The materials list is genuinely tiny, one skein of cotton, a 3.75mm hook, and a 1-inch buckle, and the video walks through the full build step by step.
7. Aprende a Tejer un Arnés para tu Mascota
This Spanish-language tutorial from the Crochet Hook channel walks through a functional, decorative harness meant to double as something nice enough to actually be seen in. If you don’t speak Spanish, auto-generated captions or auto-dubbing get you through it, and the visual construction is easy enough to follow either way.
8. Crochet Dog Harness Tutorial
Yvonne loves crochet!! adds a lace panel to this harness, a detail none of the other patterns on this list attempt, for a result that reads more like an accessory than pure function. The full build runs about 20 minutes on video.
9. Dog Harness (Chest Harness, Leash)
This one from Korean channel 코바늘하나로 is the most-watched dog harness tutorial we found anywhere, at 88,000 views, using mixed yarn and a size 6 hook. It covers both the chest harness and a matching leash in one sitting, so it’s the pattern to pick if you want the full set rather than just the harness.
10. Crochet Knitted Harness for Kittens and Puppies
Los Pollitos Tejen designed this one to fit either a kitten or a puppy, useful if you’re making harnesses for more than one small pet and want a single pattern that covers both. It’s one of over 150 tutorials on the designer’s channel.
11. Peitoral de Crochê para Cães e Gatos
Helena maria vlogs gives specific guidance on measuring your own pet’s chest circumference before you start rather than working to fixed numbers, which makes this Portuguese-language tutorial one of the more adaptable options here regardless of what size dog or cat you’re fitting it to.