Sir Colin Ian Birss (born December 1964[1] in Thurso) is a judge of the Court of Appeal of England and Wales.

Birss worked for Arthur Andersen until 1988 and after legal training at City University London he was called to the bar at Middle Temple in 1990, joining Three New Square, a specialist intellectual property set of barristers' chambers.

[4] In 2011 he sat on the controversial case brought by ACS Law on behalf of MediaCAT, relating to file downloading on peer-to-peer filesharing networks.

In July 2012, Birss, sitting in the High Court, ruled that Samsung did not infringe Apple's registered design right in its iPad tablet.

Saying he found it "Jolly useful" Source: The Law Gazette, 14 September 2023. https://www.lawgazette.co.uk/news/solicitor-condemns-judges-for-staying-silent-on-woeful-reforms/5117228.article Birss lives with his wife and their three children at their family home in Hertfordshire.