The Development of Metaphysics in Persia is the book form of Muhammad Iqbal's PhD thesis in philosophy at the University of Munich submitted in 1907 and published in 1908.

It traces the development of metaphysics in Persia from the time of Zoroaster to the advent of the Baháʼí Faith.

Muhammad Iqbal went to Germany and enrolled into Ludwig Maximilian University, Munich where he earned a PhD by submitting The Development of Metaphysics in Persia as his final thesis, in 1908.

Iqbal covers in this book from Zoroaster to Bahá'u'lláh era and metaphysical anatomy.

The method of transliteration adopted is the one recognised by the Royal Asiatic Society"[2] First Edition of the book published by Luzac & Company, London in 1908.