Al-Hadi is one of the 99 Names of Allah meaning 'The Guide'. It appears in the Quran multiple times, emphasizing that Allah alone guides people to the right path. Those whom Allah guides, none can misguide, and those whom He allows to go astray, none can guide. This name reflects Allah's attribute of providing guidance through revelation, prophets, and natural signs. Muslims invoke this name when seeking guidance in life's matters.