Swish may refer to:

• Swish (Basketball), a widespread colloquial term for a 'perfect' shot which goes through the basket without touching the rim or backboard.
• Swish (slang), a term used to describe effeminate behaviour and interests in gay male communities
• Swish (mouthwash), a national-brand mouthwash made by Vi-Jon Labs, St. Louis, Missouri
• SWiSH Max, software used to create cross-platform presentations
• SWISH-E, software to index collections of documents
• Swish cymbal, an exotic ride cymbal used in big band and swing band

Swish also may refer to:

• "Swish", nickname of Bill Nicholson (baseball) of the Chicago Cubs
• Swish, a Neuro-linguistic programming (NLP) technique used to diminish unwanted habits