Guma Leandro Aguiar (May 31, 1977 – disappeared June 19, 2012; declared legally dead January 29, 2015) was a Brazilian-born American energy industrialist and millionaire businessman who split his time between the United States and Israel.
Aguiar was recognized as a philanthropist who supported a variety of Jewish causes including Nefesh B'Nefesh and the March of the Living.
In July 2009, Aguiar invested over $4 million (USD) in support of the Beitar Jerusalem Football Club.
On June 20, 2012, Aguiar was reported missing after his unoccupied boat was found on Fort Lauderdale Beach.
The day before Aguiar went missing, a federal court judge ordered his mental health records be presented to the court as part of a lawsuit between him and his uncle Thomas Kaplan.Aguiar was declared legally dead in January 2015.