«King of My Castle» is a song by American electronic music producer Chris Brann under his Wamdue Project alias, with vocals by Gaelle Adisson. It was originally released in 1997 as a downtempo song, but became a worldwide club hit in 1999 when it was remixed by house producer Roy Malone. The song reached number one in the United Kingdom and on the US Dance charts, and one of its two videos comprised footage from the 1995 anime film Ghost in the Shell.

«King of My Castle» was re-released in 2009 with new remixes by Rowald Steyn, Mischa Daniëls and Armin van Buuren.