“Serial Killer” is a song by American singer-songwriter Slayyyter. It was previously uploaded to Slayyyter’s SoundCloud early on in her career, when she went under the name Slater.

The song was leaked sometime in 2018, along with a handful of songs from that same time period.

Later in 2020, a reworked version of the song was confirmed as the 9th track of her debut album Troubled Paradise.