Heinrich Landesmann (9 August 1821, Nikolsburg – 4 December 1902, Brno), more commonly known by his pseudonym, Hieronymus Lorm, was an Austrian poet and philosophical writer.
From his earliest childhood he was very sickly; at the age of fifteen his sight and hearing were almost completely destroyed; and later in life he became totally blind.
His Wien's Poetische Schwingen und Federn (Vienna, 1847) manifested critical acumen, but also a tinge of political acerbity in its attack on the censor system of the Austrian chancellor Prince Metternich.
His friends advised Landesmann to leave Vienna, and he went to Berlin, where he assumed the pseudonym Hieronymus Lorm in order to secure his family from possible trouble with the Viennese police.
The peculiar vein of pessimism that runs through both his poetry and his prose writings has won for him the title of the "lyrical Schopenhauer".