Théodore Pescatore (6 February 1802 – 23 August 1878) was a Luxembourgian politician. One of the most important liberals in the mid-19th century, he was president of the Constituent Assembly that wrote Luxembourg's Constitution in 1848. He later held the position of President of the Chamber of Deputies for two years.
Pescatore studied law at the University of Liège, but, instead of pursuing a career in the law, Pescatore attended a military academy in the Netherlands, and, upon returning to Luxembourg, in 1827, he was recruited as a lieutenant into the guard of Luxembourg City. However, after three years, Pescatore's anti-Orangist and pro-Belgian political sympathies forced him out of the military. Instead, he joined with his cousins to set up a faience factory in Eich, where his brother was mayor. After seven years, they merged into the Société d'industrie luxembourgeoise, and Pescatore helped set up Auguste Metz & Cie with Auguste Metz and his brothers Charles and Norbert.
In 1841, he was appointed to the 'Commission of Nine' in the Hague that advised the King-Grand Duke on the Luxembourgian issues, including the drafting of a constitution. From 30 October 1841, he was a member of the Assembly of Estates for Mersch, and entered the Commission of Government under the governor, Gaspard-Théodore-Ignace de la Fontaine. Pescatore was charged with negotiating a treaty on the terms of Luxembourg's membership of the Zollverein, in place of F. H. W. de Scherff, who had fallen ill.