Johann I Joseph (
Johann Baptist Josef Adam Johann Nepomuk Aloys Franz de Paula; 26 June 1760 – 20 April 1836) was
Prince of
Liechtenstein between 1805 and 1806 and again from 1814 until 1836. He was the last Liechtenstein prince to rule under the
Holy Roman Empire between 1805 and 1806 and as regent of Liechtenstein from 1806 until 1814. He was the fourth son of
Franz Joseph I, Prince of Liechtenstein.