An Aggravated DUI, DWI, OUI, or OWI (driving under the influence, driving while intoxicated, operating under the influence, or operating while intoxicated) is the criminal offense of DUI/DWI/OUI/OWI—with additional aggravating circumstances that enhance or make the offense a greater crime—resulting in greater potential punishments.

Aggravating circumstances that may result in an Aggravated DUI/DWI/OUI/OWI charge include (1) a blood alcohol concentration (BAC) that is significantly higher than the legal limit; (2) an accident in which a person is injured or killed, or in which there is property damage; (3) a minor child in the car being transported by the alleged intoxicated driver; (4) driving 20 mph or more over the speed limit; (5) the driver is under the legal age for drinking (generally 21); (6) refusing to submit to a chemical test of blood, breath, or urine; and (7) prior convictions for DUI/DWI/OUI/OWI.

Laws regarding the definitions and names of alcohol and drug-related driving offenses—including the consideration and definitions of aggravating circumstances—vary from state to state and are usually located in a state’s statutes—often in the penal code or criminal code.

In Indiana, an Aggravated DUI (also known as Operating While Intoxicated or OWI with aggravating circumstances) is a more serious offense than a standard OWI. Indiana law considers several factors that can elevate an OWI to an aggravated level, including having a BAC significantly higher than the state's legal limit of 0.08%, causing an accident that results in injury or death, having a minor in the vehicle, excessive speeding, being under the legal drinking age, refusing to submit to a chemical test, and having prior OWI convictions. These aggravating factors can lead to increased penalties such as longer jail time, higher fines, extended license suspension, and mandatory participation in substance abuse programs. The specific statutes detailing these offenses and penalties can be found in the Indiana Code, particularly within the sections dealing with motor vehicles and traffic regulations.