Daniel Küblböck (born 27 August 1985 in Hutthurm, Lower Bavaria) is a German pop-singer and actor who achieved short-lived celebrity in 2003, in the media-circus that surrounded the first season of Deutschland sucht den Superstar (DSDS), the German version of Pop Idol, in which he came third. He was briefly promoted as Daniel K, but reverted to his legal name when it emerged that this name had already been trademarked.

Daniel's androgynous public personality with his distinctive Bavarian dialect, was regarded by many Germans as a carefully cultivated media image of der schräge Daniel ("Wacky Daniel"). Tabloid newspapers reported that he loved wearing women's clothes, using cosmetics and collecting perfumes and incense.