Katherine "Kate" McAlpine (born 1985) is an American science journalist. In 2008, while working at CERN, McAlpine wrote, produced and performed in the YouTube video "Large Hadron Rap" under the pseudonym "alpinekat". As of September 2018, the video has been viewed over 8 million times. McAlpine has contributed articles to publications including New Scientist, ScienceNow, Physics World and Chemistry World. As of 2015, McAlpine is a web content specialist and writer at the University of Michigan College of Engineering.