Humbertium is a genus of land planarians of the subfamily Bipaliinae (hammerhead flatworms).

Species of Humbertium are characterized by the presence of a well developed penis papilla in the copulatory apparatus, similar to the one in Bipalium, but with the ovovitelloducts entering the female atrium anteriorly and not posteriorly as in Bipalium.

[1] The genus Humbertium is named after the Swiss naturalist Aloïs Humbert who described several species from Sri Lanka that are now classified in the genus.

[1] The genus Humbertium contains the following species:[2]

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