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

  • Carmen Juneau (1934–1999), Canadian politician
  • Carol Juneau (born 1945), American politician
  • Curry Juneau (born 1934), Canadian football player and coach
  • Denis Juneau (1925–2014), Canadian painter
  • Denise Juneau (born 1967), American attorney, educator, and politician
  • Joé Juneau (born 1968), Canadian ice hockey player, Olympic medalist, and engineer
  • Joe Juneau (prospector) (1836–1899), Canadian miner and prospector; founder of Juneau, Alaska
  • Madeleine Juneau (1945–2020), Canadian museologist, teacher, nun
  • Michael J. Juneau (born 1962), American judge and lawyer
  • Michel Juneau-Katsuya (born ?), Canadian intelligence officer, criminal investigator, and author
  • Pierre Juneau (1922–2012), Canadian film and broadcast executive and civil servant; Juno Award namesake
  • Solomon Juneau (1793–1856), Canadian fur trader, land speculator, and politician; a founder of Milwaukee, Wisconsin
  • William Juneau (1879–1949), American football player and college sports coach