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 Kentucky, vehicular manslaughter is referred to as 'Manslaughter in the Second Degree' under KRS 507.040 when it involves the operation of a motor vehicle. This statute classifies the offense as a Class C felony when a person operates a motor vehicle under circumstances manifesting extreme indifference to human life and thereby causes the death of another person. This can include driving under the influence of alcohol or drugs. The penalties for a Class C felony in Kentucky can include a prison sentence ranging from 5 to 10 years. Additionally, if the vehicular manslaughter is a result of driving under the influence, the offender may face charges under KRS 189A.010(5), which specifically addresses aggravating circumstances in DUI cases that result in death or serious physical injury, potentially leading to enhanced penalties. It is important to note that the specific circumstances of the incident can affect the charges and penalties, and other related statutes may also apply.