Harold Newcomb Hillebrand (1887–1953) was a professor of English literature.
His brother was an electrical engineer at Palo Alto, California.
His grandfather was the botanist William Hillebrand, who went into practise with Wesley Newcomb and married his stepdaughter Anne Post.
After Harold's studies he became a member of the English department (1914–1944) at the University of Illinois.
He published several articles within The Journal of English and Germanic philology.