Mionatrix

{{Short description|Extinct genus of snakes}}

{{Automatic taxobox

| fossil_range = Miocene

| image = Mionatrix-Paleozoological Museum of China.jpg

| image_caption = Holotype, Paleozoological Museum of China

| taxon = Mionatrix

| authority = Sun, 1961

| subdivision_ranks = Species

| subdivision = Mionatrix diatomus Sun 1966

}}

Mionatrix is an extinct genus of Colubrid snake that lived during the Miocene. Fossils have been found in Linqu, Shandong province, People's Republic of China. The type species is M. diatomus, the fossils of which are preserved in the Paleozoological Museum of China.