Barnette is a surname. Notable people with the surname include:
Elbridge Truman Barnette, (1863–1933) American adventurer Lauren Barnette (born 1985), American pageant contestant Michael C. Barnette (born 1971), American sea diver Neema Barnette (born 1949), American director Tony Barnette (born 1983), American baseball player
See also Barnette's conjecture, unsolved math problem West Virginia State Board of Education v. Barnette, a United States Supreme Court case about compelled speech in public schools