Aggressive Dog Laws in Tennessee: What Owners and Bite Victims Should Know
November 11, 2026
Aggressive dog laws in Tennessee work differently from what many owners expect. The state has no single “dangerous dog act” that sets one statewide process for declaring a dog dangerous. Instead, the rules come from a patchwork of criminal statutes, a civil bite-liability law, and city and county ordinances that can differ sharply from one place to the next.
This article explains how those pieces fit together, whether you own a dog that has been reported or you were bitten or had a pet attacked. It stays with what the statutes and published legal sources say, and flags where local rules may change the answer.
Important Note: This article is general legal information, not legal advice. Statutes and local ordinances change, and outcomes depend on the facts of each incident. If you face a dog bite claim, a dangerous-dog hearing, or a destruction petition, talk with a Tennessee attorney or your local animal control office.
Aggressive Dog Laws in Tennessee: Quick Overview
Three layers of law apply to an aggressive dog in Tennessee. The first is criminal: Tenn. Code Ann. § 39-17-1363 defines “potentially vicious” and “vicious” dogs and sets offenses tied to them. The second is civil: Tenn. Code Ann. § 44-8-413 governs who pays when a dog injures someone. The third is local, where cities and counties write their own dangerous-dog rules.
One source, our vicious animal guide, notes that Tennessee does not have a statewide dangerous dog law of the kind many states use, and that some counties and cities fill that gap with their own rules.
| Layer | Main Source | What It Covers |
|---|---|---|
| Criminal | Tenn. Code Ann. § 39-17-1363 | Definitions of potentially vicious and vicious dogs; offenses for owners |
| Civil liability | Tenn. Code Ann. § 44-8-413 | Owner responsibility for bites and injuries |
| Running at large | Tenn. Code Ann. § 44-8-408 | Offense for letting a dog roam |
| Local | City and county ordinances | Dangerous dog declarations, confinement, leash, and breed rules |
What Counts as an Aggressive, Dangerous or Vicious Dog in Tennessee
“Aggressive” is an everyday word, not a legal category. The statutory terms are “potentially vicious dog” and “vicious dog,” and both depend on conduct that happens off the owner’s property and without provocation.
According to the text of Tenn. Code Ann. § 39-17-1363 on FindLaw, a vicious dog is one that, without provocation and off the owner’s property, has attacked a person and caused death or serious bodily injury. A potentially vicious dog is one that may reasonably be assumed to pose a threat to public safety based on specific behavior.
The compiled Tennessee animal laws at PETS TN spell out that behavior: an unprovoked bite causing bodily injury to a person or domestic animal, or two or more separate occasions of chasing, menacing, or approaching a person or domestic animal in an aggressive manner.
| Classification | Trigger |
|---|---|
| Potentially vicious dog | One unprovoked, off-property bite causing bodily injury, or two or more aggressive approaches |
| Vicious dog | Unprovoked, off-property attack causing death or serious bodily injury to a person |
| Locally “dangerous” dog | Defined by each city or county; wording and thresholds vary |
Local codes often use broader terms. A local ordinance may count a bite on someone’s property, an attack on another animal, or a pattern of threatening behavior, even where the state definition would not.
How a Dog Is Declared Dangerous in Tennessee
Because no single state agency issues a dangerous-dog designation, the process usually runs through local animal control and the courts. As described in this Tennessee vicious animal overview, the designation is left almost entirely to city and county authorities and, in serious cases, the courts.
A typical sequence looks like this:
- A bite, attack, or aggressive incident is reported to animal control or law enforcement.
- The dog may be seized and placed on a bite hold at a local shelter while the investigation proceeds.
- The agency reviews witness statements, injuries, and whether the dog was provoked.
- The owner receives notice and a chance to contest the designation under the local ordinance.
- If the dog is designated, local conditions such as confinement or registration apply.
Provocation matters at every step. Our dangerous dog declaration guide notes that entry onto property by persons with permission, including postal employees, is not by itself provocation, and that the owner carries the burden of proving provocation.
Exemptions can also apply. The same guide lists situations where the dog was protecting the owner or another innocent party, or where the injured person was on the owner’s property to commit an unlawful act or was harassing the dog.
Who Can Report an Aggressive Dog in Tennessee
Anyone can report an aggressive dog or a bite, including victims, neighbors, witnesses, and parents. Reports usually go to local animal control or the police or sheriff’s department, depending on where you live.
There is no statewide reporting requirement. According to John Day Legal, Tennessee has no state law requiring you to report a dog bite or aggressive dog, but some local laws do. That source points to Williamson County, whose reporting provision extends to medical professionals who treated a bite victim.
Pro Tip: If you report an incident, write down the date, time, location, and what the dog was doing, and take photos of any injuries. Ask animal control for the report number so you can follow up.
If you are worried about a neighbor’s dog entering your yard, our guide to a neighbor’s dog on your property covers that situation in more detail.
Dangerous Dog Owner Requirements in Tennessee
What you must do depends largely on where you live. At the state level, § 39-17-1363 creates offenses tied to owning a potentially vicious or vicious dog, and it restricts people convicted of violent felonies from keeping certain dogs.
That restriction is specific. Under the FindLaw text of the statute, a person convicted of a violent felony commits an offense by having custody of a dog that is not microchipped, or is not spayed or neutered and is older than 12 weeks. It is an affirmative defense that the dog is microchipped and neutered or spayed, or became so within 30 days of the charge.
For ordinary owners, the day-to-day rules come from local codes. Based on the dangerous dog declaration guide, common conditions include:
- Keeping the dog in a secure enclosure while on your property
- Restraining the dog on a leash and sometimes muzzling it in public
- Limits on tethering, with some localities barring it entirely for a declared dangerous dog
- Rabies vaccination, which state law requires for dogs six months or older under Tenn. Code Ann. § 68-8-103
Municipal Technical Advisory Service model codes, referenced in our vicious animal article, make it unlawful to keep a known vicious or dangerous dog unless it is confined or restrained enough to protect people and other animals. Check your own city or county code for registration, signage, and insurance requirements, since those vary.
Can an Aggressive Dog Be Euthanized in Tennessee?
Yes, but not automatically. Destruction of a dog generally requires a court process or a local-authority order, and the owner gets a chance to respond.
Per the Recording Law summary of Tennessee dog bite laws, the district attorney general files the petition, and the owner has five days after receiving notice to appear and show cause. Our dangerous dog guide describes the same notice: if the owner does not appear within five days and show cause why the dog should not be destroyed, the order can issue.
Private individuals cannot simply take matters into their own hands. According to Ponce Law, Tennessee treats a dog as personal property, and killing someone else’s dog without legal justification can lead to criminal charges, including aggravated animal cruelty under § 39-14-212, a Class E felony for intentionally killing a companion animal without justifiable purpose. Narrow situations involving immediate danger are the exception.
Tennessee Dog Bite Liability: Strict Liability or One-Bite Rule
Tennessee uses a mixed system rather than choosing one rule. The Dianna Acklen Act, codified at Tenn. Code Ann. § 44-8-413, applies strict liability in some settings and a one-bite style standard in others.
When Strict Liability Applies
Under the statute’s text, an owner must keep the dog under reasonable control at all times and keep it from running at large. A person who breaches that duty faces civil liability for damages suffered by someone injured in a public place or lawfully on another person’s private property. The owner can be liable whether or not the dog showed dangerous tendencies before.
The Residential Exclusion
When the bite happens on the owner’s own residential, farm, or other noncommercial property, the rule changes. As Dog Bite Law explains, the victim must then prove the owner knew or should have known of the dog’s dangerous propensities.
Statutory Defenses
The statute lists situations where the owner is not liable under subsection (a). They include:
- A police or military dog acting in its official duties
- An injured person trespassing on the owner’s private, nonresidential property
- A dog protecting its owner or another innocent party from attack
- A dog securely confined in a kennel, crate, or other enclosure
- Injury resulting from the person enticing, disturbing, alarming, harassing, or provoking the dog
The statute defines “owner” as someone who regularly harbors, keeps, or controls the dog, not a person who is only temporarily doing so. Recording Law also notes a one-year filing deadline for dog bite claims, so check timing promptly with an attorney.
Leash and Running-at-Large Laws in Tennessee
Running at large is both a civil and a criminal issue. The § 44-8-413 definition covers a dog that goes uncontrolled on another person’s premises without consent, or uncontrolled on a highway, road, street, or other place open to the public.
On the criminal side, John Day Legal explains that under Tenn. Code Ann. § 44-8-408, an owner who lets a dog run loose can face anything from a Class A, B, or C misdemeanor to a Class D or E felony, depending on the circumstances and the harm the dog causes.
Leash rules are mostly local. Recording Law reports that municipalities including Nashville, Memphis, Knoxville, and Chattanooga enforce leash ordinances for public areas. For city-by-city details, see our guides to dog leash laws in Tennessee and leash laws in Tennessee.
A leash violation can also strengthen a victim’s claim. According to a John Day Legal article on dog-on-dog attacks, breaking a leash law can be evidence of negligence.
Local and Breed-Specific Rules in Tennessee
Local rules are where Tennessee’s aggressive dog law gets most specific. Cities and counties set their own definitions, hearing procedures, confinement standards, and penalties, so a dog treated as dangerous in one county may not be in the next.
Breed-specific legislation is uncommon in Tennessee. One summary at Pet World says courts may consider a breed’s reputation as one factor but not as a deciding one, though that page is several years old, so confirm current local codes. Some local governments and landlords still impose breed restrictions through ordinances, leases, or insurance policies.
If you own a breed that often draws extra scrutiny, read our guides to Rottweiler laws in Tennessee and Doberman laws in Tennessee. Renters should also review ESA housing laws in Tennessee, and service dog handlers can see service dog laws in Tennessee.
Important Note: Local ordinances change often and are not collected in one place. Search your city or county’s municipal code, or call animal control, to confirm the current rules where you live.
When an Aggressive Dog Attacks Other Pets or Livestock in Tennessee
The bite statute is built around injuries to people. As John Day Legal notes, § 44-8-413 does not specifically provide compensation when a dog attacks another dog, so those claims are typically brought under common law negligence.
Tennessee still treats pets as property, but that does not mean courts ignore the harm. An owner who knew or should have known the dog was dangerous and failed to control it can be held financially responsible, especially if the dog was off leash, escaped a yard, or had a history of aggression.
State law also reaches animals, not just people. The potentially vicious dog definition in § 39-17-1363 includes an unprovoked off-property bite causing bodily injury to a “domestic animal,” and repeated aggressive approaches toward domestic animals count too.
For livestock, your fence and property setup matter. See our guides to livestock fence laws in Tennessee and right-to-farm laws in Tennessee, and keep in mind that the Ponce Law source cautions against shooting a neighbor’s dog unless there is immediate danger. If a dispute involves shared ownership of a pet, our pet custody laws in Tennessee guide may help.
Aggressive Dog Laws in Tennessee: Frequently Asked Questions
Does Tennessee Have a Statewide Dangerous Dog Law?
Not in the form many states use. The state defines “potentially vicious” and “vicious” dogs in the criminal code, but dangerous dog declarations are mostly handled by cities and counties.
Is the Owner Always Liable if a Dog Bites Someone?
No. Strict liability applies to injuries in public places or on someone else’s property, but statutory defenses such as provocation or trespass can defeat liability. On the owner’s own residential property, the victim must show the owner knew or should have known the dog was dangerous.
Do I Have to Report a Dog Bite in Tennessee?
There is no statewide duty to report, but some local laws require it. Reporting also creates a record that can matter later in an injury claim.
Can My Dog Be Taken After It Bites Someone?
Yes. A dog accused of an attack can be seized and held at a local shelter during an investigation. Destruction requires a court process in which the owner has notice and an opportunity to respond.
What Should I Do if a Dog Attacks My Pet?
Get veterinary care, document the injuries, and report the incident to animal control. Claims for pet injuries usually proceed under negligence, so an attorney can explain your options.