Rigor Sardonicous is an American death inspired doom metal band from Long Island, New York. Coined as "raw, apocalyptic doom", Rigor Sardonicous is one of the earliest American doom metal bands that are still active today among Novembers Doom and Evoken. The band members are committed to unearthing the darkest, deepest funeral doom sounds imaginable since coming together in 1988. According to the interview, the band is influenced by slow parts of death metal bands like Obituary, Winter and Autopsy.