Beatriz Marinello (born May 14, 1964) is a Woman International Master chess player from the United States. She was president of the United States Chess Federation (USCF) from 2003 to 2005 and a member of the executive board from 2003 to 2007.
Marinello started playing chess at the age of 13 and became a National Women's Champion of Chile when she was 16 years old. In 1980, she was awarded the Women's International Master title. She organized her first national championship in Chile at the age of 20 years old, and later organized other international competitions.
Marinello arrived in the United States from Chile in 1990, and became a chess teacher in Miami. She represented the US in two Interzonals: the 1991 Interzonal in former Yugoslavia and the 1993 Interzonal in Indonesia. She also represented the United States in the 1994 Chess Olympiad held in Moscow. She was elected to the Executive Board of the U.S. Chess Federation in 2003, and served as USCF President from 2003 to 2005.
- Beatriz Marinello rating card at FIDE
- "20 Questions with USCF President Beatriz Marinello". Chessville. Archived from the original on 4 July 2010. Retrieved 8 June 2010.
- Bartelski, Wojciech. "Women's Chess Olympiads: Beatriz Marinello". OlimpBase. Retrieved 8 June 2010.