Julián Juderías y Loyot (16 September 1877 – 19 June 1918) was a Spanish historian, sociologist, literary critic, journalist, translator and interpreter.
His father, Mariano Juderías, was a well-known historical author and translator.
In 1900, after the death of his father, he moved to Paris to attend the School of Eastern Languages.
There and in Leipzig and Odesa he studied French, German, Russian and other languages.
His main work was a study about the concept of "Black Legend", in which he denounced the tendentious, nonobjective historical writing or propaganda about Spain, its people and its culture.