Martijn Gerard Garritsen (Dutch pronunciation: [mɑrˈtɛin ɣəˈrɑrt ˈxɑrɪtsə(n)]; born 14 May 1996), known professionally as Martin Garrix and also as Ytram and GRX, is a Dutch DJ and record producer who was ranked number one on DJ Mag's Top 100 DJs list for three consecutive years—2016, 2017, and 2018. He is best known for his singles "Animals", "In the Name of Love", and "Scared to Be Lonely".

Garrix has performed at music festivals such as Coachella, Electric Daisy Carnival, Ultra Music Festival, Tomorrowland, and Creamfields. In 2014, he headlined the first edition of Ultra South Africa, making this his first major festival. In the same year, he became the youngest DJ to headline 2014 Ultra Music Festival at the age of 17. He was a resident DJ at Spain's Hï Ibiza (2017) and Ushuaïa Ibiza (2016 and 2018). He founded the label Stmpd Rcrds in 2016, months after leaving Spinnin' Records and before signing with Sony Music.