Poitier picked his roles with care, burying the old Hollywood idea that black actors could appear only in demeaning contexts as shoeshine boys, train conductors and maids.
â€œI love you, I respect you, I imitate you,â€ Denzel Washington, another Oscar-winner, once told Poitier at a public ceremony.
As a director, Poitier worked with his friend Harry Belafonte and Bill Cosby in Uptown Saturday Night in 1974 and Richard Pryor and Gene Wilder in 1980â€™s Stir Crazy.
A career started on stage
Poitier grew up in the small Bahamian village of Cat Island and in Nassau before he moved to New York at 16, lying about his age to sign up for a short stint in the army and then working at odd jobs, including dishwasher, while taking acting lessons.
The young actor got his first break when he met the casting director of the American Negro Theatre. He was an understudy in Days of Our Youth and took over when the star, Belafonte, who also would become a pioneering black actor, fell ill.
Poitier went on to success on Broadway in Anna Lucasta in 1948 and, two years later, got his first movie role in No Way Out with Richard Widmark.
In all, he acted in more than 50 films and directed nine, starting in 1972 with Buck and the Preacher in which he co-starred with Belafonte.
In 1992, Poitier was given the Life Achievement Award by the American Film Institute, the most prestigious honour after the Oscar, joining recipients such as Bette Davis, Alfred Hitchcock, Fred Astaire, James Cagney and Orson Welles.
â€œI must also pay thanks to an elderly Jewish waiter who took time to help a young black dishwasher learn to read,â€ Poitier told the audience. â€œI cannot tell you his name. I never knew it. But I read pretty good now.â€
In 2002, an honorary Oscar recognised â€œhis remarkable accomplishments as an artist and as a human being.â€
Poitier married actress Joanna Shimkus, his second wife, in the mid-1970s. He had six daughters with his two wives and wrote three books â€“ This Life (1980), The Measure of a Man: A Spiritual Autobiography (2000) and Life Beyond Measure: Letters to My Great-Granddaughter (2008).
â€œIf you apply reason and logic to this career of mine, youâ€™re not going to get very far,â€ he told the Washington Post. â€œThe journey has been incredible from its beginning. So much of life, it seems to me, is determined by pure randomness.â€
Poitier wrote three autobiographical books and in 2013 published Montaro Caine, a novel that was described as part mystery, part science-fiction.
Poitier was knighted by Queen Elizabeth II in 1974 and served as the Bahamian ambassador to Japan and to UNESCO, the UN cultural agency. He also sat on Disneyâ€™s board of directors from 1994 to 2003.
In 2009, Poitier was awarded the highest US civilian honour, the Presidential Medal of Freedom, by President Barack Obama.
The 2014 Academy Awards ceremony marked the 50th anniversary of Poitierâ€™s historic Oscar and he was there to present the award for best director.