| Named By: | R. Kellogg in 1923 |
| Time Period: | Oligocene |
| Location: | USA - South Carolina - Ashley Formation & Chandler Bridge Formation |
| Size: | Unavailable |
| Diet: | Carnivore |
| Fossil(s): | Several specimens but only of partial remains |
| Classification: | | Chordata | Mammalia | Cetacea | Archaeoceti | Odontoceti | Xenorophidae | |
Xenorophidae is an extinct family of odontocetes currently known from the Oligocene of the southeastern US. Known genera of xenorophids include Albertocetus, Archaeodelphis, Cotylocara, Echovenator, Inermorostrum, and Xenorophus.