YY
YY stands for:
- Yakkity Yak , an Australian animated series
- the callsign prefix of Venezuelan radio stations
- as a group of letters to identify boats from (boat) dealers in the Netherlands
YY as a distinguishing mark on license plates:
- Greece: Attica
- Great Britain: Beverley
- Norway: Svolvær in the province of Nordland
- Slovakia: trailer (second group of letters)
YY stands for:
- Pseudonym (Ys for wise ) of Robert Wilson Lynd (1897–1949), Irish writer
yy stands for:
- Digraph (linguistics) for the Finnish sound / yː /
