John Tyrrell was Executive Secretary of Nuffield Ireland Farming Scholars from January 2013 to November 2021 and is an Honorary Nuffield Scholar.
From a farming background in County Dublin, he graduated with an Honours Degree in Agriculture from University College Dublin. He then worked with ADAS, in the UK for three years as a Specialist Dairy Adviser.
In 1978, he took up a role in the Irish Co-operative Organisation Society (ICOS) and was CEO from January 1990 until August 2010.
He is Executive Secretary of the Dairy Research Trust which is responsible for the collection and allocation of the dairy levy to dairy production and food research programmes.