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What Size Collar & Harness for a Irish Wolfhound?

For an adult Irish Wolfhound, a XL collar and XL harness are the usual starting point, based on a typical neck of 51–66 cm and chest of 81–102 cm. But every dog is different — measure yours and use the two-finger rule before buying.

Collar: XL  ·  Harness: XL
Typical neck 51–66 cm · chest 81–102 cm · weight 48–70 kg
⚠️ Measure your dog — breed is only a starting point. A Irish Wolfhound's build varies a lot between individuals, and a collar is a safety item. Measure the neck snug, add about 2-3 cm (the two-finger rule), and confirm against the specific collar's size guide before buying.
🐕 Breed note: Sighthounds have necks as wide as or wider than their heads, so a standard buckle collar can slip off. A martingale or wide sighthound collar is safer.

Typical measurements for an adult Irish Wolfhound:

Typical rangeRecommended size
Neck (collar)51–66 cm (20–26 in)XL
Chest (harness)81–102 cm (32–40 in)XL
Weight48–70 kg

Got a tape measure handy? The collar & harness calculator turns your exact measurement into a size with the two-finger fit built in.

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Soft Tape Measure

Flexible tape to measure your dog's neck and chest accurately — the safe way to size.

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Martingale Collar

A no-slip martingale collar is the safe choice for narrow-headed sighthounds.

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Adjustable Dog Collar

Adjustable everyday collar — match the range to your dog's measured neck.

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