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- Christopher Daniel Barnes (born 1972); actor, voice actor, The Little Mermaid, Spider-Man: The Animated Series, Day by Day; born in Portland
- Anna Belknap (born 1972); actress, Lindsay Monroe on CSI: NY; born in Damariscotta
- Joan Benoit (born 1957); first women's Olympic marathon champion; born in Cape Elizabeth
- Carroll Thayer Berry (1886–1978); printmaker, woodcut engraver, painter and photographer; born in New Gloucester, Maine
- Corey Beaulieu (born November 22, 1983); musician, guitarist in Trivium. Born in Brunswick, Maine
- Dennis Blair (born 1947); third U.S. Director of National Intelligence from 2009 to 2010 and retired four-star U.S. Navy admiral; born in Kittery
- Gordon Bok (born 1939) folk singer/songwriter; born in Camden
- Contessa Brewer (born 1974); news anchor for MSNBC; born in Parsonsfield
- Brett Brown; assistant coach for the San Antonio Spurs; raised in South Portland
- Harry Brown (1917–1986); poet, novelist, screenwriter; born in Portland
- Scott Brown (born 1959); U.S. Senator of Massachusetts; born in Kittery
- Brian Butterfield (born 1958); third base coach for the Toronto Blue Jays; born in Bangor
Read more about this topic: List Of People From Maine