Sundberg is a Swedish surname (sund meaning sound, berg meaning mountain). Notable people with the surname include:
Andy Sundberg (1941–2012), advocate for American citizens abroad
Anton Niklas Sundberg (1818–1900), Swedish Lutheran archbishop of Uppsala, Sweden
Arnie Sundberg (1906–1970), American weightlifter who competed in the 1932 Summer Olympics
Bertil Sundberg (1907–1979), Swedish chess player
Carl Sundberg, American football coach
Carl-Johan Sundberg, Swedish actor
Clayton A. Sundberg, Canadian Christian Heritage Party candidate from Alberta
Clinton Sundberg (1903-1987), American actor
H. Sundberg, zoologist and classifier of various day geckos (phelsumas) in the Seychelles Islands, awarded the sundbergi classification
Harry Sundberg, Swedish football/soccer player at the 1924 Paris Olympics
Jacob W. F. Sundberg, president of the International Commission of Inquiry into the 1932–1933 Famine in Ukraine
Jim Sundberg, American major-league baseball player and American Leagues Gold Glove Award winner
Joe Sundberg, main vocalist for the late '60s rock band Fuse
Johan Sundberg, author of textbook The Science of Musical Sounds
John Sundberg (1920-2004), Swedish sport shooter
Maud Sundberg (1911–2010), Swedish Olympic sprint runner
Niels Sundberg, owner of Sun Air of Scandinavia
Ola Sundberg, Swedish spokesperson for the Sweden Democrats party (Sverigedemokraterna)
Oliver Sundberg, Danish speedskater
Per B Sundberg, b. 1964 is a Swedish glass- and ceramic artist
Peter Sundberg, Swedish car racing
Mark L. Sundberg, Behavior analyst, applied and research psychologist. Founder of Journal of Verbal Behavior
Richard J. Sundberg, co-author of textbook Advanced Organic Chemistry Part A Structure and Mechanisms
Ross Sundberg, Australian Federal Court judge
Ulrika Sundberg, Swedish diplomat