YY or variants may refer to: *

YY.com YY is a major Chinese video-based social network A social network is a social structure consisting of a set of social actors (such as individuals or organizations), networks of Dyad (sociology), dyadic ties, and other Social relation, soci ...

, a major Chinese social network *

yy (digraph) This is a list of digraphs used in various Latin alphabets. In the list, Letter (alphabet), letters with diacritics are arranged in alphabetical order according to their base, e.g. is alphabetised with , not at the end of the alphabet, as it wou ...

, digraph used in various Latin alphabets * Yy (musician), Canadian musician * YY, the

call sign In broadcasting and radio communications, a call sign (also known as a call name or call letters—and historically as a call signal—or abbreviated as a call) is a unique identifier for a transmitter station. A call sign can be formally as ...

prefix for radio stations in Venezuela * Y. Y., pseudonym of

Robert Wilson Lynd Robert Wilson Lynd (; 20 April 1879 – 6 October 1949) was an Irish writer, editor of poetry, urbane literary essayist, socialist and Irish nationalist. Early life Lynd was born at 3 Brookhill Avenue in Cliftonville, Belfast to Robert John Ly ...

(1879–1949), Irish essayist *

Peptide YY Peptide YY (PYY), also known as peptide tyrosine tyrosine, is a peptide that in humans is encoded by the gene. Peptide YY is a short (36-amino acid) peptide released from cells in the ileum and colon in response to feeding. In the blood, gut ...

3-36, a peptide secreted by the gut in response to a meal, and reduces appetite *YY, the production code for the 1969 ''Doctor Who'' serial ''

The Space Pirates ''The Space Pirates'' is the mostly missing sixth serial of the sixth season of the British science fiction television series ''Doctor Who'', which originally aired in six weekly parts from 8 March to 12 April 1969. In this serial, the TARD ...

See also