Noctourniquet is the sixth studio album by American progressive rock band the Mars Volta, released on March 26, 2012 on Warner Bros. Produced by guitarist and songwriter Omar Rodriguez-Lopez, it is the band's only studio album to feature drummer Deantoni Parks, and their first album not to include contributions from guitarist John Frusciante.

Inspired by the children's nursery rhyme "Solomon Grundy", and the Greek myth of Hyacinthus, Noctourniquet is a concept album.

Following the album's release, the Mars Volta broke up due to ongoing tension and disagreements between core members Rodriguez-Lopez and Bixler-Zavala. As a result, Noctourniquet became the final studio album of the band's initial run. In 2019, the band reunited in secret, releasing its first studio album in ten years, The Mars Volta, in 2022.