CGP Grey is the name of an Irish educational YouTuber and podcaster who has been posting on YouTube under the channel name since 12 August 2010. Grey also posts videos on his secondary channel, CGPGrey2, and live streams gameplay on another channel, CGP Play.
His YouTube channel mainly features short explanatory videos on varying subjects, including politics, geography, economics, history, and culture. The channel’s most popular video is an explanation of the terminology of the British Isles, which went viral in 2011. Grey’s videos have since received increasing attention, and have been reviewed in several publications, including Business Insider and The Washington Post.
In addition to video production, Grey is known for creating the audio podcast Hello Internet in 2014 with fellow educational YouTuber Brady Haran. Since 2015, he has also hosted the audio podcast Cortex with Myke Hurley of Relay FM. Along with Philipp Dettmer and Dave Wiskus, Grey started the company Standard Broadcast LLC, which provides production and administrative support to digital creators.