As nouns the difference between persian and santoor
is that
persian is a person of Iranian descent while
santoor is an Indian string instrument, a trapezoidal hammered dulcimer with seventy strings, believed to be derived from the Persian santur.
As a proper noun Persian
is a family of languages spoken primarily in Iran, Afghanistan, Uzbekistan, and Tajikistan.
As an adjective Persian
is of, from, or pertaining to Persia.