Vehicular manslaughter is a criminal offense defined as the unintentional killing (homicide) of another person as a result of criminal negligence or recklessness while operating a motor vehicle—often while the operator is intoxicated by alcohol or drugs, engaged in a high risk activity such as street racing, or committing a misdemeanor or infraction offense (speeding) with ordinary negligence.

Vehicular manslaughter is usually a felony offense and often includes significant jail or prison time as potential punishment. Vehicular manslaughter laws vary from state to state and are generally located in a state’s statutes—often in the penal or criminal code.

In Alabama, vehicular manslaughter is referred to as 'manslaughter' when it involves the operation of a vehicle. Under Alabama law, specifically Section 13A-6-3 of the Alabama Code, a person commits manslaughter if they recklessly cause the death of another person. This can include situations where the operator of a motor vehicle causes a death due to reckless driving, such as driving under the influence of alcohol or drugs. Manslaughter is a Class B felony in Alabama, which can result in a prison sentence ranging from 2 to 20 years. Additionally, if a driver is under the influence of alcohol or drugs and causes the death of another person, they may be charged with 'criminally negligent homicide,' which is a less severe charge but still a serious offense under Alabama law. The specific circumstances of the incident, such as the level of negligence or recklessness, will determine the exact charges and potential penalties.