Thomas Holkenborg, also known by his stage name Junkie XL or occasionally JXL, 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 DOA: Dead or Alive, Run All Night, Mad Max: Fury Road, Deadpool, The Dark Tower, Tomb Raider, Mortal Engines, Alita: Battle Angel, Terminator: Dark Fate, Sonic the Hedgehog, Godzilla vs. Kong, and Zack Snyder's Justice League.