Jonathan Robert Whitmer (born July 17, 1999), professionally known as Kxllswxtch, is an American recording artist and songwriter from Orange County, California. He is known for his screaming vocals and horror-inspired visuals often featuring knives and fighting.

Kxllswxtch began making music in 2017 and quickly gained a local following. He dropped several songs before releasing his first EP InVain on SoundCloud. He would go on to make much of his earlier music private.