How many shanti mantra?

There are several shanti mantras found in Hindu scriptures, with some of the most well-known being from the Upanishads. The most commonly recited shanti mantras include the "Om Sahana Vavatu" mantra and the "Om Sarvesham Svastir Bhavatu" mantra, among others. Typically, there are around five to seven main shanti mantras that are often referenced in spiritual practices. Each mantra is intended to promote peace and harmony in the self and the universe.