Heather Rhiannon Morgan (born 1990 or 1991), also known as Razzlekhan, is an American entrepreneur, rapper and convicted felon. According to New York authorities, she laundered the proceedings from a heist of US$4.5 billion in cryptocurrencies.

In February 2022, Morgan and her husband Ilya Lichtenstein were charged by the FBI with conspiracy to launder over $4 billion in stolen bitcoin. The bitcoin were stolen in the 2016 Bitfinex hack.  She was released on bail on 14 February 2022, and convicted on 3 August 2023.

Morgan produced rap videos under the stage name Razzlekhan, in which she described herself as the "Crocodile of Wall Street". Her stage name is inspired by Genghis Khan.