Dame Rotha Geraldine Diane Johnston, DBE (born August 1959) is a Northern Irish entrepreneur in commerce and property.
Johnston is chair of Northern Ireland Screen,[1] a non-executive director of Northern Ireland Electricity and an independent board member of the Department of Justice and Belfast Harbour Commissioners.
[2] Johnston, a native of West Belfast who attended St Dominic's Grammar School, is a non-executive Director of Allied Irish Bank and Deputy Chair of Invest Northern Ireland.
She is a non-executive member of the Northern Ireland Office and Pro Chancellor at Queen's University Belfast.
Johnston was appointed Commander of the Order of the British Empire (CBE) in the 2006 New Year Honours[6] and Dame Commander of the Order of the British Empire (DBE) in the 2016 Birthday Honours for services to the Northern Ireland economy and public service.