Do Newfoundlands make good guard dogs?

Yes, the Newfoundland’s giant size, strength, loyalty and innate protective instincts make them both an imposing deterrent and a trustworthy, formidable guard dog able to actively confront intruders if necessary to defend their family and property.

Are Newfoundlands the right size to be guard dogs?

The Newfoundland is a giant working dog breed weighing up to 150 pounds. Their tremendous muscular frames, imposing height and sheer mass alone can give intruders pause. Combined with webbed feet and water resistant coats, they have the strength and stamina to actively fend off would-be threats as well.

Does a Newfoundland have the right temperament to be a guard dog?

Known for their calm, dignified demeanors, Newfoundlands are loyal, exceptionally gentle companions devoted to their families – especially children. But they have strong territorial instincts and inherent capacity to use their giant frames to actively guard homes and defend owners from harm.

Can you train a Newfoundland to be a guard dog?

Biddable with eager-to-please dispositions, Newfoundlands respond very well to training that nurtures their natural protectiveness into disciplined behaviors leveraging their considerable size and strength to guard property and defend owners from threats. They are able to discriminate when intervention is warranted.

Have Newfoundlands ever been used as guard dogs?

Valued as fisherman’s helpers hauling nets and rescuing drowning sailors, Newfoundlands retain their working ability today – especially in water rescue. But families also benefit from their guardian instincts protecting homes and children combined with an affable nature when proper socialization occurs.

What are the Pros and Cons of using a Newfoundland as a guard dog?


  • Giant size
  • Great strength and stamina
  • Protective instincts


  • Shedding and drool
  • Substantial food consumption

With tremendous size and strength paired with loyal affection towards family and wariness of strangers, the Newfoundland has both the imposing presence to intimidate as well as the power and protective instincts to actively guard against intruders if needed.

Final Thoughts

Requiring significant living space and hearty food portions, Newfoundland ownership also demands daily brushing to contain substantial shedding. Proper socialization ensures they become discriminately protective rather than generally wary.

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