Daniel Robert Elfman (born May 29, 1953) is an American film composer, singer, songwriter, and musician. He came to prominence as the lead vocalist and primary songwriter for the new wave band Oingo Boingo in the early 1980s. Since scoring his first studio film in 1985, Elfman has garnered international recognition for composing over 100 feature film scores, as well as compositions for television, stage productions, and the concert hall.

Elfman has frequently worked with directors Tim Burton, Sam Raimi, and Gus Van Sant, contributing music to nearly 20 Burton projects, including Pee-Wee's Big Adventure, Beetlejuice, Batman, Edward Scissorhands, Batman Returns, Mars Attacks!, Sleepy Hollow, Big Fish, and Alice in Wonderland, as well as scoring Raimi's Darkman, A Simple Plan, Spider-Man, Spider-Man 2, Oz the Great and Powerful, and Doctor Strange in the Multiverse of Madness, and Van Sant's Academy Award-winning films Good Will Hunting and Milk. He wrote music for all of the Men in Black and Fifty Shades of Grey franchise films, the songs and score for Henry Selick's animated musical The Nightmare Before Christmas, and the themes for the popular television series Desperate Housewives and The Simpsons.