YY

YY or variants may refer to:

• YY.com, a major Chinese social network
• yy (digraph), digraph used in various Latin alphabets
• Yy (musician), Canadian musician
• YY, the call sign prefix for radio stations in Venezuela
• Y. Y., pseudonym of Robert Wilson Lynd (1879–1949), Irish essayist
• Peptide YY 3-36, a peptide secreted by the gut in response to a meal, and reduces appetite
• The Space Pirates, a 1969 Doctor Who serial (production code YY)

See also

• W (disambiguation)

This disambiguation page lists articles associated with the title YY.
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.