Protium (disambiguation)

Protium or hydrogen-1 is the most common isotope of the element hydrogen, with one proton, one electron, and no neutrons.

Protiim may also refer to:
 * Protium (plant), a genus of chiefly tropical American trees in the family Burseraceae, having fragrant wood
 * Cadence Protium, hardware accelerated prototyping platforms for early software development by Cadence Design Systems