SYN

Syn or SYN may refer to:

In arts and entertainment

In music

• The Syn, a band
• Synyster Gates, lead guitarist of the band Avenged Sevenfold

Fictional characters

• Doctor Syn, in novels by Russell Thorndike

Other uses in arts and entertainment

• SYN Media, a youth media organization based in Melbourne, Australia

In science and technology

• Syn addition, in organic chemistry
• Syn conformation in alkane stereochemistry
• Syndal railway station, Melbourne
• Synonym (taxonomy), a system of accepted alternative names for species
• SYN (TCP), synchronise packet in transmission control protocol (TCP)
• Synchronous idle (␖), one of the C0 and C1 control codes
• SYN (OSC), a standardized namespace within Open Sound Control

Other uses

• Syn (goddess), in Norse mythology
• Coalition of Left, of Movements and Ecology (Synaspismós, abbreviated SYN or ΣΥΝ), a Greek political party