Patrick Joseph McGuinness CMG OBE (born 27 April 1963) is a former senior British civil servant who now advises businesses and governments globally on their resilience, crisis, technology, data and cyber issues.

On 24 May 2017 McGuinness became the first serving British official to testify to a Congressional Committee when he joined Richard W Downing[7] of the US Department of Justice before the US Senate Judiciary Committee subcommittee on Crime and Terrorism [8] advocating for lawful access to data to counter Serious Organised Crime through the Cloud Act.

[12] In January 2016 McGuinness provided written testimony to the Undercover Policing Inquiry on the importance of the "Neither Confirm Nor Deny" principle for National Security.

[17] which made a series of recommendations aimed at securing the information infrastructure of elections and creating a trusted environment for the democratic use of technology reported in October 2019.

[18] In January 2018 the Sunday Times newspaper reported that McGuinness was to advise the State of Qatar on the security for the 2022 soccer World Cup.