Dr. Niratcha Tungtisanont (Thai: ณิรัฐชา ตังติสานนท์), nicknamed Grace (Thai: เกรซ) (born April 19, 1987, in Bangkok) is an assistant professor in the Department of Logistics, Business & Public Policy at the Robert H. Smith School of Business. She was also the official representative of Thailand to the 2011 Miss Earth pageant.