Blayney could refer to:
Places Blayney, New South Wales, Australia, a small town Blayney Shire, New South Wales Blayney, Ontario, Canada, a farming hamlet Castleblayney, Ireland, often shortened to Blayney by locals
People Blaney (surname), includes Blayney Blayney Townley (Dunleer MP), MP (1692–1715) for Dunleer (Parliament of Ireland constituency) Blayney Townley-Balfour (Carlingford MP) (1705–1788)
Other uses Baron Blayney, an extinct title in the Peerage of Ireland