Thomas-Jean-Jacques Loranger, QC (February 2, 1823 – August 18, 1885) was a Quebec judge and political figure.
He studied at the Séminaire de Nicolet, then articled in law with Antoine Polette and was called to the bar in 1844.
Loranger was elected to the Legislative Assembly of the Province of Canada for Laprairie in 1854; he was reelected in 1857.
He supported Montreal as a capital and opposed the choice of Ottawa; this led to the resignation of the government of John A. Macdonald and George-Étienne Cartier in 1858.
Loranger continued as a member in the legislature until he was named judge in the Quebec Superior Court in 1863.