Look up syd in Wiktionary, the free dictionary.
Syd or SYD may refer to:
- Syd (name), including a list of people with the name
- Syd., taxonomic author abbreviation of Hans Sydow (1879–1946), German mycologist
- Sydney, New South Wales, Australia
- IATA code for Sydney Airport, New South Wales, Australia
- Syd the platypus, a mascot of the Sydney 2000 Olympic games.
- Sydney FC, professional soccer club
- Syd (singer), an American singer-songwriter
- National Rail station code for Sydenham railway station (London), London, England
- Stonewall Young Democrats, a young gay democratic club based out of Los Angeles, California
- Hans Sydow (1879-1946), a German mycologist with author abbreviation "Syd."
- Sum-of-Years' Digits, an accounting, economics, and financial depreciation method
- Saw You Drown
- Seitokai Yakuindomo, a Japanese manga and anime series by Tozen Ujiie.