Syn or SYN may refer to:

In arts and entertainment

In music

  • The Syn, a band formerly including bassist Chris Squire of Yes
  • SYN (band), formed by Japanese musician Halca
  • Synyster Gates, lead guitarist of the band Avenged Sevenfold

Fictional characters

Other uses in arts and entertainment

  • SYN Media, a youth media organization based in Melbourne, Australia
  • Broadcast syndication, in which the right to broadcast a television program has been sold to multiple independent stations

In science and technology

Other uses