Police say the vehicles were stolen from French Street, Warren Street, Wing Street, and 2nd Street overnight Wednesday.
Three of the cars are still missing.
Those three are: a 2002 gold Mazda Protg 4-door, a 1994 blue Saturn SL 4-door, and a 2003 green Mercury Sable 4-door.
If you have any information on these cars, Bangor Police would like to hear from you. Please give them a call at 947-7382.