- Larry Page, Co-Founder of Google
- Sergey Brin, Co-Founder of Google
- Peter Drucker, Management Guru
- Prince William and Prince Harry, sons of Prince Charles and Princess Dianna of Wales
- George Clooney, Academy Award-winning actor
- Jeff Bezos, founder of Amazon
- Anne Frank, famous diarist from World War II
- Jimmy Wales, founder of Wikipedia
- Stephen Curry, NBA super star
- Steve Wozniak, founder of Apple
- Mark Zuckerberg, co-founder of Facebook
- David Blaine, magician, endurance artist and advocate of “street magic”
- Will Wright, computer game designer (Sim City) and co-founder of Electronic Arts
- Katherine Graham, former owner-editor of the Washington Post. “The Montessori method – learning by doing – once again became my stock in trade…”
- Anne Hathaway, academy award-winning actress
- HM Queen Noor of Jordan, U.N. Adviser, humanitarian activist, memoirist
- Devi Sridhar, youngest-ever American Rhodes scholar
- Alan Rickman, renowned English stage actor and theater director
- Sean “P. Diddy” Combs, rapper and CEO of Bad Boy Records
- Beyonce Knowles, singer, songwriter, fashion designer, and 16-time Grammy award-winner
- Julia Child, famous chef, star of many TV cooking shows, and author of numerous cookbooks Chef
- Helen Hunt, Academy Award-winning actress
- Gabriel Garcia Marquez, Nobel Prize winner for literature
- Joshua Bell, American violinist, owner of Stradivarius violin
- Lea Salonga, multi-awarded Filipino-American singer and Broadway actress
- Jacquiline Bouvier Kennedy Onassis, former editor, former first lady (John F. Kennedy)
- Berry Brazelton, noted pediatrician and author
- Kami Cotler, actress (youngest child on long-running series The Waltons)
- Melissa and Sarah Gilbert, actors
- Mr. Rogers, children’s TV personality, strong supporter of Montessori education
- Bono, lead singer and principal lyricist of the Irish rock band U2
- Cher, singer, actress
- Anderw Lloyd Webber, English composer and impresario of musical theater
- Patty Duke Austin, actress
- Taylor Swift, American singer-songwriter
- John & Joan Cusack, actors
- Dakota Fanning, actress
- Helen Keller, political activist, author, and lecturer
- Yo Yo Ma, cellist
- Willie Nelson, musician, has a Montessori school on his ranch
- Yul Brynner, actor
- Michael Douglas, actor
- Shari Lewis, puppeteer
- Chelsea Clinton, Daughter of Former President and New York Senator
- Stephen J. Cannell, TV writer-producer-director (The Rockford Files and many other)
- Alexander Graham Bell (inventor) and his wife Mabel founded the Montessori Education Association in 1913. They also provided financial support directly to Dr. Maria Montessori and helped establish one of the first in the United States.
- Thomas Edison, noted scientist and inventor, helped found a Montessori school
- Margaret Wilson, President Woodrow Wilson’s daughter trained as a Montessori teacher. There was a Montessori classroom in the basement of the White House during Wilson’s presidency.