Ros Serey Sothea (Khmer: រស់ សេរីសុទ្ធា) (1948 – 1977) was a Cambodian singer. She was active during the final years of the Sangkum Reastr Niyum period and into the Khmer Republic period. She sang from a variety of genres but romantic ballads emerged as her most popular works. Despite a rather short career, she is credited with singing hundreds of songs and ventured into acting, starring in a few films. Details of her life are relatively scarce. She died during the Democratic Kampuchea regime of the Khmer Rouge but circumstances of her fate remain a mystery. King Norodom Sihanouk granted Sothea the honorary title, "The Golden Voice of the Royal Capital".