Y

YAC gov. Youth Advisory Council (UNEP).
YAF soc. Young Americans for Freedom.
YB abrev. Year Book.
YES gov. Youth Exchange Scheme for Europe.

YFE

YFE gov. Youth for Europe, o mesmo que JPE.
YMCA soc. Young Men's Christian Association.
YMHA soc. Young Men's Hebrew Association.
YPS soc. Young People's Society.
YRE gov. Youth against Racism in Europe.
YT soc. Yukon Territory.
YU geog. Yugoslavija, antiga República Federativa da Jugoslávia.
YWCA soc. Young Women's Christian Association.
YWHA soc. Young Women's Hebrew Association.