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

• Adam Rapp (born 1968), American novelist
• Alfred Rapp (1933–2011), German politician
• Anders Rapp (1927–1998), Swedish geomorphologist
• Anthony Rapp (born 1971), American stage and film artist
• Barbara Rapp (born 1972), Austrian artist
• Bernard Rapp (1945–2006), French film director and television news presenter
• C. J. Rapp, American beverage inventor
• Danny Rapp (1941–1983), American musician
• Elizabeth Farrow Rapp (1926–2010), All-American Girls Professional Baseball League player
• Emily Susan Rapp (born 1974), American author and academic
• George Rapp (1757–1847), pietist, German-American religious leader of the Harmony Society
• Jean Rapp (1771–1821), French lieutenant general
• Karl Friedrich Rapp (1882–1962), German engineer, founder of Rapp Motorenwerke GmbH
• Katharina Rapp (born 1948), German artist
• Larry Rapp (born 1948), American actor
• Lea Bayers Rapp (born 1946), American non-fiction writer
• Marcello Rapp, better known as "Cello Dias", bass guitarist for Against All Will
• Mitch Rapp, fictional character
• Nicki Rapp (born 1972), American video game voice actress
• Nicolai Rapp (born 1996), German footballer
• Peter Rapp (born 1983), German long jumper
• Philip Rapp (1907–1996), film and television director and screenwriter
• Ray Rapp (born 1945), a Democratic member of the North Carolina General Assembly
• Reneé Rapp (born 2000), American actress and singer
• Richard Rapp, former New York City Ballet dancer
• Siegfried Rapp (1915–1982), German one-handed classical pianist
• Taylor Rapp (born 1997), American football player
• Tom Rapp (1947–2018), American singer-songwriter
• Torsten Rapp (1905–1993), Swedish Air Force general
• Vern Rapp (1928–2015), Major League Baseball manager and coach
• Valentin Rapp (born 1992), German squash player

See also

• Rapp and Rapp, an architectural firm