Foster could refer to:

In-universe

• Foster (Lieutenant), an Earth Starfleet officer
• Foster (Cadet), a 2280s Starfleet Academy cadet
• Foster (Crewman), a crewman aboard USS Voyager
• Foster-D'Angelo, a location in space

Real world

• Alan Dean Foster, the author who wrote the novelizations of the entire Animated Series
• D. Foster, a swing gang member of the art department on The Next Generation
• Meg Foster, who played Onaya in DS9's "The Muse"
• Stacie Foster, who played Lieutenant Bartel in TNG's "Relics"
• Foster (stand-in), a stand-in in TNG "The Game"

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