Top Dog Breeds Most Likely to Attack Postmen in the UK

For many dog owners, the thought of their dog attacking someone, especially a postman or delivery worker, is a distressing and worrying prospect. Such incidents can cause serious injuries and carry severe consequences including legal action against the owner and even the loss of the dog.

Every dog owner has a responsibility to manage their dog safely to protect the public. Even the friendliest dogs can behave unpredictably when they perceive an intruder entering their home territory, which commonly happens when postal workers deliver mail or parcels.

In 2025, nearly 2,200 dog attacks on Royal Mail workers were reported across the UK, a figure that highlights the ongoing risk and the importance of understanding breed tendencies, owner management, and preventive steps.

1. Mixed-Breed Dogs: The Most Common Offenders

Most attacks on postal workers involve mixed breed dogs, including popular hybrids such as Labradoodles and Cockapoos. This is primarily because mixed breeds are the most prevalent dog type in the UK.

Mixed breed dogs can vary widely in temperament and size, but like any dog, they can become protective if they see a postal worker entering their perceived home territory. Responsible ownership, early socialisation, and training are crucial regardless of breed to prevent incidents.

2. German Shepherds: The Most Likely Pedigree Breed

The German Shepherd tops the list among pedigree breeds known for attacking postmen. Their natural guarding instincts, territorial nature, intelligence, strength, and loyalty make them highly protective of their families.

While German Shepherds are not aggressive by nature, their guarding traits require careful management and regular training to ensure they do not react defensively to postal workers or other visitors. They are the eighth most popular breed in the UK, increasing their representation in such incidents.

3. Staffordshire Bull Terriers: Loyal Guardians

Staffordshire Bull Terriers, or Staffies, rank as the third most common breed to bite postmen. Known for their affectionate and gentle nature towards family, they can become fiercely protective of their home when left unled or when sensing a threat.

As the tenth most popular breed in the UK, Staffies are widespread and their loyalty, if unchecked or mismanaged, can unfortunately lead to defensive aggression.

4. Border Collies: Unexpected Attackers

The Border Collie is the fourth most common breed involved in attacks. Though not commonly viewed as a guarding dog, their working background involves protecting flocks and making decisions independently, which can translate into a defensive reaction in a home setting.

Being the 13th most popular breed in the UK, the high number of Border Collies partly explains their incidence in bites on postmen. Proper training and socialisation address their protective behaviours.

5. Labrador Retrievers: Friendly but Still Protective

The Labrador Retriever is often perceived as one of the most sociable and non-aggressive breeds. However, they are still dogs with guarding instincts and will defend their home when they perceive threats, especially when their owners are absent.

Labradors are the sixth most popular UK breed, and many owners may underestimate their protective tendencies, increasing the risk of an attack on postal workers.

Why Do Dogs Attack Postmen?

Dog attacks on postal workers usually stem from the dog perceiving them as intruders threatening their home and family. This guarding and territorial behavior is strongest in breeds with protective instincts but can be exhibited by any dog under stress or fear.

Owner factors also play a role. Dogs that are poorly managed or trained, or whose owners encourage protective aggression, are more likely to bite. Situational triggers include postal workers entering the property without clear invitation, an open gate, or even reaching through letterboxes.

Current UK Regulations and Best Practices

Under UK law, owners are legally responsible if their dog attacks anyone, including postal workers. The Dangerous Dogs Act and recent legal rulings enforce this responsibility, with possible prosecution for failure to prevent attacks.

Royal Mail runs Dog Awareness Week campaigns promoting safe practices like securing dogs away from the door, using letterbox cages, and displaying dog warning signs. Police and unions also urge responsible dog management to protect workers.

How to Socialise and Train Your Dog to Prevent Attacks

Early and consistent socialisation is key. Exposing puppies and young dogs to postal workers and varied environments builds positive associations, reducing fear and aggression.

Train your dog with positive reinforcement to be calm near front doors and mail slots. Never answer doors without securing your dog in another room or behind barriers. Avoid encouraging guarding behaviours unless professionally trained.

If your dog is rescue or has fear triggers, seek professional animal behaviourist advice.

Conclusion

While all dogs have the potential to defend their homes, mixed breeds and certain pedigree breeds such as German Shepherds, Staffordshire Bull Terriers, Border Collies, and Labradors are most commonly involved in attacks on postal workers in the UK.

Responsible ownership, legal compliance, early socialisation, and training are essential to reduce risks and ensure safe neighbourhoods for both people and dogs. Awareness and practical safety measures help prevent incidents, protecting postal workers and preserving the well-being of your pet.