Multi-chambered side airbag assemblies are provided. The airbag assemblies can include a housing, an inflator, and a side inflatable cushion. The side inflatable cushion can include multiple chambers, for example, a first inflatable chamber coupled to the housing, a second inflatable chamber coupled to the first inflatable chamber, and a third inflatable chamber coupled to the second inflatable chamber. The side inflatable cushion can also include a connector coupling at least two of the inflatable chambers to each other. In a deployed state, at least a portion of the side airbag may protrude transverse to a longitudinal axis of a vehicle such that a portion of the side airbag is configured to receive a vehicle occupant moving from a vehicle occupant position during a vehicle impact event.