A saw is a cutting tool. Saw may also refer to:
- Saw (film series), a series of horror films
- Saw (2003 film), a 2003 short film by James Wan, upon which the series of films was originally based
- Saw (film), the first movie in the series, released in 2004
- Saw II, a 2005 film, the sequel to Saw
- Saw III, a 2006 film, the sequel to Saw II
- Saw IV, a 2007 film, the sequel to Saw III
- Saw (saying), an old proverb or maxim
- Musical saw, a regular cutting saw used to produce musical sounds
- Saw Recordings, a record label
- Sawtooth wave, a waveform that can be found in most synthesizers
- Piła (Saw in Polish), a town in Greater Poland Voivodeship
SAW may stand for:
- Selected Ambient Works, two albums by Aphex Twin
- Surface acoustic wave and Surface Acoustic Wave filters
- Squad automatic weapon or section automatic weapon, a one-man machine gun used by the U.S. Army and Marines
- sallalahu aleyhi wasallam, Arabic for Peace be upon him (Islam)
- Stock Aitken Waterman, British producers trio
- Sabiha Gökçen International Airport, (IATA airport code: SAW), one of the two airports serving Istanbul, Turkey
- Simple Authentication for the Web, an automated website login approach using email or instant messaging
- Submerged Arc Welding, a common type of arc welding process
