Liadopsyllidae is an extinct family of hemipteran insects belonging to Psylloidea ranging from the Early Jurassic to Upper Cretaceous. The family was named by Andrey Vasilyevich Martynov in 1926. They are the earliest known members of Psylloidea, with modern members of the group not known until the Paleogene, as such, they have been suggested to be a paraphyletic assemblage ancestral to modern psylloids. The family Malmopsyllidae has been subsumed into this family, but is considered distinct by some authors.

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