Robert Culp Stalnaker (born 1940) is an American philosopher who is Laurance S. Rockefeller Professor Emeritus of Philosophy at the Massachusetts Institute of Technology.

His thesis advisor was Stuart Hampshire, though he was strongly influenced by another faculty member, Carl Hempel.

In 2007, Stalnaker delivered the John Locke Lectures at Oxford University on the topic of "Our Knowledge of the Internal World".

[6] In his work, he seeks to provide a naturalistic account of intentionality, characterizing representation in terms of causal and modal notions.

Along with Saul Kripke, David Lewis, and Alvin Plantinga, Stalnaker has been one of the most influential theorists exploring philosophical aspects of possible world semantics.