Jan Małachowski, count of Końskie and Białaczów, was Grand Chancellor of the Crown of the Kingdom of Poland in the years 1746–1762, vice-chancellor of the Crown in the years 1735–1746, crown pantler in the years 1734–1735, governor of Kraków from 17 January 1734 to 30 June 1736, starost of Opoczno and Ostrołęka.