Darren Christopher Tierney (born 29 January 1975) is a British civil servant, serving since 2023 in the

Cabinet Office The Cabinet Office is a Departments of the Government of the United Kingdom, ministerial department of the Government of the United Kingdom. It is responsible for supporting the Prime Minister of the United Kingdom, prime minister and Cabinet ...

as the director-general for propriety and constitution group. From 2021–2023, he was director-general for propriety and ethics. Tierney, a Roman Catholic from Northern Ireland who attended St Columb's College in Derry and then

Queen's University Belfast The Queen's University of Belfast, commonly known as Queen's University Belfast (; abbreviated Queen's or QUB), is a public research university in Belfast, Northern Ireland, United Kingdom. The university received its charter in 1845 as part of ...

, joined the civil service in 2007, joining the

Ministry of Justice A justice ministry, ministry of justice, or department of justice, is a ministry or other government agency in charge of the administration of justice. The ministry or department is often headed by a minister of justice (minister for justice in a ...

where he held various roles including as Principal Private Secretary to the

Lord Chancellor The Lord Chancellor, formally titled Lord High Chancellor of Great Britain, is a senior minister of the Crown within the Government of the United Kingdom. The lord chancellor is the minister of justice for England and Wales and the highest-ra ...

Kenneth Clarke Kenneth Harry Clarke, Baron Clarke of Nottingham (born 2 July 1940) is a British politician who served as Home Secretary from 1992 to 1993 and Chancellor of the Exchequer from 1993 to 1997. A member of the Conservative Party (UK), Conservative ...

. Tierney was then promoted to director, serving first as director for youth justice policy. He then briefly worked for the Cabinet Office as director for civil service efficiency in 2015, returning to the Ministry of Justice as interim director-general of prison policy in 2016 for a few months. From 2016 until 2019, Tierney worked as the new

Department for International Trade The Department for International Trade (DIT) was a Departments of the Government of the United Kingdom, department of the Government of the United Kingdom, United Kingdom Government, from July 2016 to February 2023. It was responsible for stri ...

's director of strategy. He was promoted to serve from 2019 as the director-general responsible for global trade and investment. Tierney returned to the Cabinet Office in 2021, taking over from outgoing Deputy Cabinet Secretary Helen MacNamara in the part of her role as overseeing propriety and ethics across the UK government. Tierney worked on the investigation into the Westminster Christmas parties controversy with his predecessor but one in this role, Sue Gray. In 2023, the role was reformed to include the constitutional affairs parts of the cabinet office, and renamed to "Director General, Propriety and Constitution Group".

Offices held

References

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* {{DEFAULTSORT:Tierney, Darren Christopher Living people British civil servants Civil servants in the Cabinet Office People educated at St Columb's College 1975 births Alumni of Queen's University Belfast