Soap is a surfactant cleaning compound used for personal or other cleaning.

SOAP is an XML computer network protocol (originally an acronym for Simple Object Access Protocol), a protocol specification in computer networks.

Soap or SOAP may also refer to:

Arts and entertainment

Television

  • Soap opera, ongoing, episodic work of fiction on TV or radio
  • Soap (TV series), a 1970s sitcom

Fictional characters

  • Captain Soap MacTavish, fictional soldier from the Call of Duty: Modern Warfare series
  • Hotel Soap is an animated cartoon character in the Dr. Tran animated series of internet shorts

Music

  • S.O.A.P. (duo), a Danish pop music duo
  • Sons of All Pussys, a Japanese band often abbreviated S.O.A.P.
  • "Soap" (song), by Melanie Martinez, 2015
  • "Soap", a song by Stand Atlantic from Pink Elephant, 2020
  • "Soap", a song by Yves and PinkPantheress from Soft Error, 2025

Science and technology

  • Short Oligonucleotide Analysis Package, a bioinformatics package used for the assembly and analysis of DNA sequences
  • SOAP ("Simplify Obscure Algol Programs"), an Algol 60 prettyprinter
  • SOAP note, a method of documentation used in medical charts
  • Spectrometric Oil Analysis Program, a method for testing the oil in aircraft engines for the concentration of critical metals to identify wear of engine parts
  • Sugar soap, a material used for cleaning surfaces before repainting
  • Symbolic Optimal Assembly Program, an assembly language for the IBM 650 computer

Other uses

  • Society of Australian Punk, an organisation focused on Australian punk
  • Supplemental Offer and Acceptance Program, for medical students who were not initially matched with U.S. residencies by the National Resident Matching Program

See also

  • Mountain soap
  • Soap Creek (Missouri), a stream in the U.S. state of Missouri
  • Soap shoes, skateboarding shoes made for grinding
  • Joe Soap, a comic strip series
  • En Soap, 2006 Danish comedy film