What was crazy horse name as a boy?

Crazy Horse's real name was "Crazy Horse" in the Lakota language, which was "Tȟašúŋke Witkó". He was not given a separate name as a boy; his name was the same throughout his life.

It's important to understand that Native American naming practices were very different from European customs. A name wasn't just a label, but a reflection of a person's character, actions, or significant events in their life. In Crazy Horse's case, his name was earned through his actions and personality.

It's also important to note that "Crazy Horse" is the anglicized version of his Lakota name. "Tȟašúŋke Witkó" roughly translates to "His Horse is Crazy" or "Crazy Horse."