Pallonji Mistry is an Irish construction tycoon who has an estimated net worth of $22.9 billion as of July 2019. Born Pallonji Shapoorji Mistry in India, he became an Irish citizen in 2003 on the basis of his marriage to an Irish-born national and gave up his Indian citizenship.

Mistry is the chairman of the Indian construction giant Shapoorji Pallonji Group that is responsible for building most of the major buildings in Mumbai such as the Hong Kong & Shanghai Bank, the Grindlays Bank, the Standard Chartered Bank, the State Bank of India, and the Reserve Bank of India. In June last year, he handed over the chairmanship of the group to his older son Shapoor. He is a horse racing enthusiast who owns a stud farm in Pune that Pallonji gave him as a birthday gift several years ago.

Pallonji Mistry is a stakeholder with 18.4% in the Tata Sons where his father bought shares in the 1930ès. Currently, he is the single largest shareholder in the largest private conglomerate in India, Tata Group, with $100 billion in revenues. His younger son, Cyrus, replaced the Indian business legend Ratan Tata as chairman of Tata sons after Tata retired in December. He has been recruiting younger executives to be part of his core team.