Ignaz Kögler (called Lai in Chinese; 11 May 1680 – 30 March 1746) was a German Jesuit missionary in Qing China.
Along with Johann Adam Schall von Bell he was a leading figure among the fifty German Jesuits who between 1650 and 1750 worked in the Chinese missions.
[2] On account of his wide learning, he enjoyed consideration at the imperial court, and held the office of president of the mathematical astronomical tribunal for thirty years.
He was a mandarin of the second class, and was from 1731 a member of the supreme court of equity (Li-pu), a position which had never before been held by a foreigner.
Ferdinand Augustin Hallerstein, his co-operator and successor, called him "one of the most cultivated minds that ever came into these countries".