Foster Moreau (born 1997), American football player
Foster Sarell (born 1998), American football player
John Foster Dulles (1888–1959), American diplomat and politician
Sterling Foster Black (1924–1996), American lawyer
Caroline E. Foster, New Zealand law professor
Jodie Foster (born 1962), American actor
Places
Australia
Foster, Victoria
Canada
Foster, Quebec, a village, now part of the town of Brome Lake
United Kingdom
Foster Mill, in Cambridge, England
United States
Foster (CTA), elevated transit station in Evanston, Illinois, USA
Foster, California (disambiguation)
Foster, San Diego County, California
Foster, Indiana
Foster, Kentucky
Foster, Washtenaw County, Michigan
Foster, Minnesota
Foster, Missouri
Foster, Nebraska
Foster, Oklahoma
Foster, Oregon
Foster, Rhode Island
Foster Township, Michigan
Foster, Wisconsin (disambiguation)
Foster, Clark County, Wisconsin, a town
Foster, Eau Claire County, Wisconsin, an unincorporated community
Foster City, California
Foster Township (disambiguation)
Child care
Foster care, the modern system of placing children in state custody in the homes of temporary caregivers
Fosterage, the sometimes historical practice of children being raised by families not their own
Arts, entertainment, and media
Fictional characters
Foster, a dog on General Hospital from 1994 to 1998
Foster, one of The Fuzzpaws, puppets on the Canadian channel YTV
Court Foster, a character in the film The Man in the Moon (1991)
Madame Foster and Francis "Frankie" Foster, recurring characters of the animated show Foster's Home for Imaginary Friends. The latter being the former's granddaughter
Literature
"Foster" (short story), by Claire Keegan, 2010
Ellen Foster, 1987 novel by American author Kaye Gibbons
Other art, entertainment, and media
Foster (film), a 2011 British comedy-drama film written and directed by Jonathan Newman
Foster the People, an American rock band named after its lead singer Mark Foster
Foster's Home for Imaginary Friends, animated television series
Brands and companies
Foster and Partners, an architectural firm
Foster, Rastrick and Company, British steam locomotive manufacturer
Foster's Group, Australian beer producer
Foster's Lager
William Foster & Co., British agricultural machinery company
Science and technology
Foster's reactance theorem, theorem in electrical engineering
Foster's rule (island rule), principle in evolutionary biology
Foster's theorem, theorem in probability theory
Foster, a 6-row malting barley variety
Foster (crater), a small lunar impact crater on the far side of the Moon
Fostering (falconry), bird breeding technique for its introduction into nature
Food
Bananas Foster, a dessert of bananas and vanilla ice cream, with a caramelized liquor-based sauce.