Atwood is a surname. Notable people with the surname include:

• Angela Atwood (1949–1974), founding member of the Symbionese Liberation Army (SLA), American terrorist group which kidnapped Patricia Hearst
• Brett Atwood, journalist, online editor and academic
• Casey Atwood, American former NASCAR driver
• Charles Atwood (disambiguation), multiple people
• Charles B. Atwood (1849–1895), American architect
• Colleen Atwood, Academy Award-winning costume designer
• Dave Attwood, English rugby player
• David Attwood (1952–2024), English filmmaker
• Donald J. Atwood Jr. (1924–1994), Deputy United States Secretary of Defense under George H. W. Bush
• Donna Atwood (1925–2010), American figure skater
• Duncan Atwood, American javelin thrower
• Eden Atwood, American jazz musician and intersex rights activist
• Ethel Atwood (1870–?), American musician and orchestra co-founder
• Edwin W. Atwood (1875–1958), American politician
• George Atwood (1745–1807), English mathematician, inventor of the Atwood machine and chess player
• Harry Atwood (1884–1967), American engineer, inventor and aviator who landed an airplane on the White House South Lawn
• James Attwood, American businessman and political donor
• Jane Evelyn Atwood, American photographer
• Jeff Atwood, American software developer and entrepreneur
• Jett Atwood, American animator
• John Leland Atwood (1904–1999), American aerospace engineer and business executive
• Kimball Atwood, American anesthesiologist and skeptic of naturopathy
• Kimball Chase Atwood, American insurance company founder and grapefruit magnate, owner of the Atwood-Blauvelt mansion in Oradell, New Jersey
• Lewis R. Atwood (1860–1926), American businessman from Kentucky
• Margaret Atwood, Canadian novelist and literary critic
• Matthias Attwood (1779–1851), British banker and politician
• Mary Anne Atwood (1817–1910), English writer on hermeticism
• Olivia Attwood, English television personality, presenter and model
• Orville E. Atwood (1880–1939), American politician
• Reese Atwood, American softball player
• Richard Attwood, British racing driver
• Roman Atwood, American YouTube prankster and comedian
• Rudy Atwood (1912–1992), American pianist
• Seth G. Atwood (1917–2010), American industrialist, community leader, and horological collector
• Stephen S. Attwood (1897–1965), American engineer and professor
• Thomas Attwood (composer) (1765–1838), English composer and organist
• Thomas Attwood (economist) (1783–1856) British banker, economist, political campaigner and Member of Parliament
• Thomas Warr Attwood, English builder, architect and local politician
• Tony Attwood, British/Australian psychologist
• Wallace Walter Atwood (1872–1949), American geographer and geologist
• William Atwood (disambiguation), several people