Konrad Haebler (29 October 1857 – 13 December 1946) was a German (Saxonian) librarian, historian and expert on incunabula.
He studied philology in Leipzig and worked in the royal public library in his native Dresden from 1879.
His research into the economic history of Spain led to an interest in early prints.
From 1898, he was in charge of cataloguing the incunabula of the Königliche Öffentliche Bibliothek in Dresden.
For this purpose he began to compile a systematic comparison of types.