Hyptia deansi is an extinct species of ensign wasp in the family Evaniidae known from a solitary Late Oligocene to Early Miocene fossil found in Mexico.

The amber specimen, number SMNS MX–440, is currently housed in the fossil collection of the State Museum of Natural History Stuttgart in Baden-Württemberg, Germany.

The holotype was first studied by paleoentomologists John T. Jennings and Steven Mew, both of the university of Adelaide in conjunction with Lars Krogmann of the State Museum of Natural History Stuttgart.

The specific epithet deansi is in honor of Andy Deans of North Carolina State University in recognition for his efforts to generate new interest in the family Evaniidae.

As with other fossil members of Evaniidae, the petiole is long in comparison to the gaster length, a feature uncommon in modern evaniids.