Newhouse is an English surname. Notable people with the surname include:

• Alana Newhouse, writer and editor
• Dan Newhouse, American politician
• Donald Newhouse (born 1930), publisher
• Flower A. Newhouse (1909–1994), Christian mystic and spiritual teacher
• Fred Newhouse (born 1948), American Olympic runner
• Joseph Newhouse (born 1942), American economist
• Mark Newhouse (born 1985), American professional poker player
• Neil Newhouse, American pollster
• Richard H. Newhouse, Jr. (1924–2002), American politician
• Samuel Newhouse (1853–1930), Utah entrepreneur and mining magnate
• Samuel Irving Newhouse, Sr. (1895–1979) American broadcasting businessman, magazine and newspaper publisher
• Samuel Irving Newhouse, Jr. (1927–2017), chairman and CEO of Advance Publications

• Dicovery Green
• Dicraeus
• Dicranaceae
• Dicranaspis
• Dicraniana
• Dicranocara
• Dicranocarpus
• Dicranoloma
• Dicranomyia
• Dicranopteridaceae
• Dicranoptycha
• Dicranoses
• Dicranota
• Dicranoweisia brevipes
• Dicranoweisia crispula
• Dicranucha
• Dicranum scoparium
• Dicranuropsis
• Dicranurus elegans
• Dicranurus hamatus
• Dicranurus monstrosus
• Dicrateria
• Dicreatine Malate
• Dicrocheles
• Dicrogamasus