Synophis lasallei, also known commonly as Lasalle's fishing snake, La Salle's shadow snake, and la culebra andinas de la sombra de La Salle in South American Spanish, is a species of snake in the subfamily Dipsadinae of the family Colubridae.

The species is native to northwestern South America.

The specific name, lasallei, refers to the Instituto de La Salle, Bogotá, Colombia.

[2] The preferred natural habitat of S. lasallei is forest.

[1] S. lasallei preys upon frogs and small lizards.