Robert Betts Laughlin (born November 1, 1950) is an American theoretical physicist who, with Horst L. Störmer and Daniel C. Tsui, was awarded the 1998 Nobel Prize in physics for his explanation of the fractional quantum Hall effect.
Robert Betts Laughlin () adolah surang ahli fisika Stanford University nan basamo Horst Störmer jo Daniel Chee Tsui, dianugarahi Adiah Nobel Fisika pado tahun 1998 untuak panjalehannyo ateh efek kuantum Hall.