A sinner refers to a person who commits a sin.

Sinner or The Sinner may also refer to:

• Carl Ahasver von Sinner (1754–1821), Swiss architect
• George A. Sinner (1928–2018), American politician, 29th Governor of North Dakota
• George B. Sinner, American politician
• Jannik Sinner (born 2001), Italian tennis player
• Martin Sinner (born 1968), German tennis player
• Mat Sinner (born 1964), German musician

• The Sinner (1928 film), a German silent drama film
• The Sinner (1940 film), an Italian drama film
• The Sinner (1951 film), a German drama film
• The Sinner (1975 film), an Italian drama film
• Sinner, a 1972 Spanish film directed by Jesús Franco, aka Intimate Diary of a Nymphomaniac
• La ragazza dalla pelle di luna, also known as The Sinner, a 1973 Italian film
• Sinner (film), a 2007 film starring Nick Chinlund and Georgina Cates
• The Sinner (TV series), an anthology series based on the novel of the same name by Petra Hammesfahr

• Sinner (Dekker novel), a 2008 fantasy book by Ted Dekker
• Sinner (Douglass novel), a 1997 fantasy novel by Sara Douglass
• Sinner (Rulli book), a 2011 religious book by Lino Rulli
• The Sinner (novel), a 2003 novel by Tess Gerritsen
• The Sinner, a 2003 novel by Madeline Hunter

• Sinner (band), a German heavy metal band
• "Sinner" (Judas Priest song), 1977
• Sinner (Drowning Pool album), 2001
• "Sinner" (Drowning Pool song), 2002
• "Sinner" (Neil Finn song), 1998
• Sinner (Joan Jett album), 2006
• "Sinner" (Andy Grammer song), 2014
• Sinner (Aaron Lewis album), 2016
• "Sinner" (The Last Dinner Party song), 2023

• Sinner: Sacrifice for Redemption, a 2018 action game

• SS-16 Sinner, the NATO reporting name for the RT-21 Temp 2S intercontinental ballistic missile

• Siner (disambiguation)
• Sinnar, a city in Maharashtra, India
• Sinnar taluka, Maharashtra, India
• Sinners (disambiguation)