Miriam Adelson (née Farbstein; born 10 October 1945) is an Israeli-American physician, businesswoman, and political donor.

She was married to Sheldon Adelson, founder of the Las Vegas Sands casino company and the Israel Hayom newspaper, from 1991 until his death in 2021.

As of 2024, according to Forbes, she has an estimated net worth of $32 billion, making her the 53rd-richest person as well as the richest Israeli in the world,[2][3] and is the eighth-richest woman in America.

[4] Adelson was born Miriam Farbstein in Tel Aviv, Mandatory Palestine, in 1945[1] to parents who fled Poland before the Holocaust.

[9] She became a physician and, eventually, the chief internist in an emergency room at Tel Aviv's Rokach (Hadassah) Hospital.

There, she was mentored by, and subsequently collaborated for two decades with, Mary Jeanne Kreek, who was known for the development of methadone therapy for heroin addiction.

[10] She has published numerous scientific papers on the topic of drug addiction during her career and has been a guest investigator at Rockefeller University.

[11][12] In July 2024, Adelson donated $3 million to Israeli volunteer emergency medical services organization United Hatzalah.

[20] The NBA Board of Governors unanimously approved the sale of the controlling ownership interest of the Dallas Mavericks of the National Basketball Association to Adelson and her son-in-law Patrick Dumont on December 27, 2023.

[21] The Adelson-Dumont families' would own 69% of the team and previous controlling owner Mark Cuban's share was reduced to 27%.

[5] Since buying a majority stake in the Dallas Mavericks, Adelson has been advocating for greater legalization of gambling in Texas, in order to build a casino in the state.

[10] She is credited with influencing his political views on Israel, who was "inspired by [her] Zionism, and from there began a public and philanthropic campaign unique in our generation".

[24] Adelson is a financial supporter of the Zionist Organization of America, the Yad Vashem Holocaust museum and memorial in Jerusalem, and various U.S. groups that fundraise for the Israeli military.

Referring to a wave of pro-Palestinian protests occurring across various western cities and countries, Adelson stated that "Those ghastly gatherings of radical Muslim and Black Lives Matter activists, ultra-progressives and career agitators were nothing short of street parties.