Alice Ambrose Lazerowitz (November 25, 1906 – January 25, 2001) was an American philosopher, logician, and author.

Alice Loman Ambrose was born in Lexington, Illinois and orphaned when she was 13 years old.

Along with fellow student Margaret MacDonald she secretly (since he did not allow this) made notes during Wittgenstein's lectures, which were later published.

Wittgenstein terminated their association abruptly in 1935, when Ambrose decided, with encouragement from G.E.Moore, to publish an article entitled "Finitism in Mathematics" in the philosophical journal Mind[4] which was intended to give an account of Wittgenstein's position on the subject.

She worked chiefly in logic and mathematical philosophy, writing a primer on the subject with her husband which became a widely used textbook and was known as "Ambrose and Lazerowitz".