Currently at the Office for Criminal Justice Reform (OCJR), Scott takes up her new role next month. She will report to MLA chief executive Chris Batt.
At the MLA, Scott will be responsible for preparing the official archives of the 2012 Olympic Games.
Interim director of marketing and comms Deborah Oliver said: ‘The arts, heritage and culture sectors must look hard at what they are offering in the run-up to the Olympics in terms of putting Britain on the map.'
She added: ‘This is true particularly in view of the fact that 85 per cent of tourists come to the UK for its museums and galleries.'
With responsibility for a ten-strong team, Scott will also run the MLA's Renaissance programme - set up to ensure the continuous funding of regional museums.
Scott said: ‘Challenges will include helping to decide how we make our libraries of the future and how we can get involved in the Olympics.'
Currently the OCJR's director of comms for technology, Scott's recent work includes overseeing the Criminal Justice Exchange project - under which the technical systems of government agencies and departments involved in the justice process have been linked.
It is not yet known if the OCJR will recruit for Scott's replacement.
The MLA is a non-departmental public body run out of the Department for Culture, Media and Sport.
On Scott's arrival, Oliver said she will take on another interim role outside of the organisation.