at least 30 in (76.2 cm)
A Mastiff stands at least 30 in (76.2 cm) at the shoulder (males). Males (kennel club profile).
Source: American Kennel Club
Draw this heightA Mastiff stands at least 30 in (76.2 cm) at the shoulder (males).
Height is measured at the withers, the top of the shoulders. The head and ears extend above that line. The American Kennel Club breed profile gives 30 inches & up (male), 27.5 inches & up (female). Choose the sex or size variety above where the source separates them. A range describes the published listing, not the height of every individual dog.
Ranked by the tallest height its standard names (30 in), the Mastiff is the 9th tallest of the 297 dog breeds on this site. See the tallest dog breeds ranked.
Drawn at the same 30 in: Greyhound, Cougar and White-tailed deer. Same drawing, different listings: a Mastiff’s figure is a minimum, a Greyhound’s the top of its male range, a cougar’s a maximum, a white-tailed deer’s the lower end of its male range.
This is a published species or breed reference, not a prediction for an individual animal. Where a range is supplied, both ends appear with the reading. Shoulder height and head height are kept apart when comparing animals.
All 50 working dogs by height, tallest first, or every dog breed. To compare your own dog, measure it at the withers.
A Mastiff stands at least 30 in (76.2 cm) at the shoulder (males). Males (kennel club profile).
Source: American Kennel Club
Draw this heightA Mastiff stands at least 27 1/2 in (69.9 cm) at the shoulder (females). Females (kennel club profile).
Source: American Kennel Club
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| APA | Heightvs. (2026, October 22). How tall is a Mastiff? Drawn to scale beside a person. https://heightvs.com/how-tall/mastiff |
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| MLA | “How Tall Is a Mastiff? Drawn to Scale Beside a Person.” Heightvs, 22 Oct. 2026, heightvs.com/how-tall/mastiff. |
| Chicago | “How Tall Is a Mastiff? Drawn to Scale Beside a Person.” Heightvs. Last modified October 22, 2026. https://heightvs.com/how-tall/mastiff. |
| Link | <a href="https://heightvs.com/how-tall/mastiff">How tall is a Mastiff? Drawn to scale beside a person (Heightvs)</a> |
For the height itself, cite the original publisher as well: American Kennel Club.