Dunn's road guarder (Crisantophis nevermanni) is a species of snake in the family Colubridae.

The species, which is monotypic in the genus Crisantophis, is endemic to Central America.

C. nevermanni is found in northwestern Costa Rica, El Salvador, Guatemala, western Honduras, and Nicaragua.

[2] The generic name, Crisantophis, is in honor of Miss Crisanta Cháves, who was director of the Museo Nacional de Nicaragua for over 50 years.

[3] The specific name, nevermanni, is in honor of German coleopterist Wilhelm Heinrich Ferdinand Nevermann (1881–1938).