Léon Becker (1826 – 27 January 1909) was a Belgian botanist, painter, naturalist, and arachnologist.

[1][2] From a young age, he became passionate about entomology, with a particular interest in arachnology.

[3] Between 1882 and 1896, he published four volumes entitled Les Arachnides de Belgique,[4] which he illustrated himself.

He also studied Dutch, German, Moldavian and Hungarian fauna.

This Belgian biographical article is a stub.