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 Louisiana, vehicular manslaughter is referred to as 'Vehicular Homicide' under Louisiana Revised Statutes 14:32.1. This offense occurs when a person kills another human being unintentionally while operating a motor vehicle, and the driver is under the influence of alcohol or drugs. The statute specifies that the substance must be present in the driver's system above a certain threshold. Vehicular homicide in Louisiana is a felony, and the penalties can be severe, including fines and imprisonment. The exact punishment can vary depending on factors such as the driver's blood alcohol concentration (BAC) at the time of the incident and prior convictions. The law also provides for enhanced penalties if the BAC is significantly above the legal limit. It is important for individuals in Louisiana to understand that vehicular homicide is a serious crime with substantial legal consequences, and those accused should seek the assistance of an attorney.