Sir Martin Alexander Griffiths (born 27 April 1962)[1] is a British High Court judge.

[1] He was called to the bar at Inner Temple in 1986; he volunteered at Waterloo Legal Advice Service from 1988 to 1993.

In practice, he specialised in commercial law and practised from Essex Court Chambers.

[2][3] He took silk in 2006, served as a recorder from 2009 to 2019, and was appointed a deputy High Court judge in 2016.

Since 2022, he has been Presiding Judge of the Wales circuit, succeeding Sir Simon Picken.