No, that would be anarchism. Part of what distinguishes libertarianism from anarchism is that it does acknowledge the utility of a government, and very few libertarians would deny one of its primary, legitimate duties is public safety.

Do not mistake believing that our current government (which is, might I add, the single largest entity in the history of man; sorry, it isn't that bizarre to think that it might just be a teensy bit too large, despite people's best efforts to somehow cast this as a crazy idea) is too large with thinking that the correct amount of government is zero.