Julia Wan-Ping Hsu is an American materials scientist. In her research, she uses scanning probe microscopy to study the nanostructure, optics, and photoelectric properties of thin films and crystal surfaces, with particular application to solar cells,[1] and has used nanotransfer printing to make electrical connections to single-molecule sensing devices.[2] She is a professor of materials science and engineering at the University of Texas at Dallas, where she holds the Texas Instruments Distinguished Chair in Nanoelectronics.[1]