Tom Holkenborg (born 8 December 1967), also known as Junkie XL, is a Dutch composer, multi-instrumentalist, DJ, producer, and engineer. Originally known for his trance productions, he has moved to producing electronica and big beat music and film scores. His remix of Elvis Presley's "A Little Less Conversation" became a worldwide hit in 2002.

In film scores, he has worked with Hans Zimmer and his company Remote Control Productions on Man of Steel and Batman v Superman: Dawn of Justice, as well as composing the scores for Zack Snyder's Justice League, Divergent, Mad Max: Fury Road, Deadpool, Tomb Raider, Alita: Battle Angel, Terminator: Dark Fate, Sonic the Hedgehog (and its sequels), Scoob!, Godzilla vs. Kong, Army of the Dead, and Three Thousand Years of Longing.