Rhabdophis subminiatus, commonly called the red-necked keelback or red-necked keelback snake, is a species of venomous snake in the subfamily Natricinae of the family Colubridae. The species is endemic to Asia.

The specific name subminiatus refers to the typical reddish coloration ("miniatus" = "scarlet, vermilion")

A red-necked keelback snake at Cat Tien National Park, Vietnam
A red-necked keelback snake at Cat Tien National Park, Vietnam
A red-necked keelback snake at Cat Tien National Park, Vietnam
A red-necked keelback snake at Cat Tien National Park, Vietnam
A red-necked keelback snake at Cat Tien National Park, Vietnam
A red-necked keelback snake at Cat Tien National Park, Vietnam

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