Fionnuala Jay-O'Boyle

Fionnuala Mary Jay-O'Boyle CBE DL (born 22 March 1960) is a British lobbyist, charity trustee, and public official. She is the Lord-Lieutenant for the County Borough of Belfast since 2014, and a member of the House of Lords Appointments Commission since 2019.

Jay-O'Boyle was a trustee of The Prince's Regeneration Trust from 2003 and of The Prince's Foundation for Building Community from 2016 until they were both merged into The Prince's Foundation in 2018. She founded the Belfast Buildings Trust in 1996, of which she remains patron. She was a deputy lieutenant for Belfast from 2009 until her elevation in 2014. She was appointed a Member of the Order of the British Empire (MBE) in 2000, and appointed a Commander of the Order (CBE) in 2008.