Anna Margaret Urbas (1905/1906 – 1930) was a friend of Eugene Moran, who was a bodyguard of Arnold Rothstein. She was murdered because she knew too much about the underworld, particularly the principal figures in a feud between Rothstein and Jack Diamond. Urbas was the sixth murder victim in the criminal dispute. Also known as Mrs. Rice, Urbas' body was recovered from the East River at 155th Street in New York City in May 1930.