Neculai Alexandru Ursu (August 3, 1926 – May 14, 2016) was a Romanian linguist, philologist, and literary historian.
He graduated from Alexandru Ioan Cuza University and earned his doctorate in philology in 1967 for his work Formarea terminologiei ?tiin?ifice române?ti (Formation of the Romanian scientific terminology).
In 2013, Ursu became a corresponding member of the Romanian Academy.