Sy is a given name, nickname/hypocorism (often of Seymour) and surname which may refer to:
The Syrian Civil War (Arabic: الحرب الأهلية السورية, Al-ḥarb al-ʼahliyyah as-sūriyyah) is an armed conflict taking place in Syria.
Syria (/ˈsɪ.riə/; Arabic: سوريا Sūriyā), officially known as the Syrian Arab Republic (Arabic: الجمهورية العربية السورية al-Jumhūrīyah al-ʻArabīyah as-Sūrīyah), is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the west, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest.
Sydney /ˈsɪdni/ is the state capital of New South Wales and the most populous city in Australia and Oceania.
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum.
Systemic lupus erythematosus (SLE), also known simply as lupus, is an autoimmune disease in which the body's immune system mistakenly attacks healthy tissue in many parts of the body.
Synesthesia (also spelled synæsthesia or synaesthesia; from the Ancient Greek σύν syn, "together", and αἴσθησις aisthēsis, "sensation") is a neurological phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway.
Michael Sylvester Gardenzio Stallone (/stəˈloʊn/; Italian: [stalˈloːne]; born July 6, 1946) is an American actor, filmmaker, and screenwriter.
A synthesizer (often abbreviated as synth, also spelled synthesiser) is an electronic musical instrument that generates electric signals that are converted to sound through instrument amplifiers and loudspeakers or headphones.
Roger Keith "Syd" Barrett (6 January 1946 – 7 July 2006) was a British musician, composer, singer-songwriter, and painter.