Haider is an Arabic name meaning "lion", one of the honorary titles of Ali, the cousin and son-in-law of the Prophet Muhammad, which makes it especially common among Shia Muslims in Iraq, Pakistan and India. The spelling Haider is the usual one in South Asia, where it is also a familiar surname. In the United States the name has moved between numbers 2100 and 2900 over the past decade and reaches number 2063 in 2025, its best rank so far.