Hugó Meltzl of Lomnitz (31 July 1846 – 20 January 1908) was a Hungarian scholar who was a professor at, and later rector of, the Franz Joseph University.

He was appointed as professor of German (later French, Italian) history and language of the newly founded Franz Joseph University.

One of his major successes was that he made well known the works of Sándor Petőfi and József Eötvös in abroad.

Between 1877 and 1888, with Sámuel Brassai he was the co-editor and publisher of the multilingual Összehasonlító Irodalomtörténeti Lapokat (Acta Comparationis Litt.

He died on 20 January 1908 in Nagyvárad, Austria-Hungary (now Oradea, Romania), and was buried in Kolozsvár (Cluj-Napoca).