Kudnu is an extinct genus of neodiapsid reptile from the Early Triassic Arcadia Formation of Australia.

[2] The holotype is QM F9181, an anterior section of a cranium with articulated dentary rami, and it was discovered in the Crater, southwest of Rolleston, Queensland.

[7] More recent authors, such as Poropat et al. (2023), consider Kudnu to be a basal member of Neodiapsida.

[4] The world Kudnu inhabited was still recovering from the recent Permian–Triassic extinction event, and as a result global biodiversity had remained low throughout much of the Early Triassic.

[9] Currently a high diversity of fauna has so far been recorded from the Arcadia Formation that lived alongside Kudnu.