Pythagorean, meaning of or pertaining to the ancient Ionian mathematician, philosopher, and music theorist Pythagoras, may refer to:
Philosophy Pythagoreanism, the esoteric and metaphysical beliefs purported to have been held by Pythagoras Neopythagoreanism, a school of philosophy reviving Pythagorean doctrines that became prominent in the 1st and 2nd centuries AD Pythagorean diet, the name for vegetarianism before the nineteenth century
Mathematics Pythagorean theorem Pythagorean triple Pythagorean prime Pythagorean trigonometric identity Table of Pythagoras, another name for the multiplication table
Music Pythagorean comma Pythagorean hammers Pythagorean tuning
Other uses Pythagorean cup Pythagorean expectation, a baseball statistical term Pythagorean letter
See also List of things named after Pythagoras