Master's Hammer is a black metal band from the Czech Republic. It was founded in 1987 and produced several demos, before releasing their debut album Ritual in 1991, which sold more than 25,000 copies in the Czech Republic. Two years later they completed The Jilemnice Occultist. Their third album (Šlágry in 1995) was a drift away from the previous work incorporating many styles outside the metal genre. In 2009 Master's Hammer reformed and released Mantras, their first album in 14 years.