Arnold Ludwig Gotthilf Heller (1 May 1840 – 1913) was a German anatomist and pathologist who was a native of Kleinheubach am Main, Bavaria.
He studied medicine at the Universities of Erlangen, Berlin and Leipzig, and as a student had as instructors Friedrich Albert von Zenker (1825-1898), Carl Ludwig (1816-1895) and Rudolf Virchow (1821-1902).
In 1866 he received his medical doctorate, and in 1869 was habilitated at Erlangen.
In 1899 Heller proved that syphilis was a cause of aortic aneurysm, and with his assistant Karl Gottfried Paul Döhle (1855-1928), he described syphilitic aortitis, a condition sometimes referred to as "Döhle-Heller syndrome".
This article about a German person in the field of medicine is a stub.