Sandra Sullivan is an American businesswoman known primarily for her marriage to casino and real estate magnate Sheldon Adelson, whom she married in 1970 and divorced in 1981 after 11 years of marriage. Born in the United States, Sullivan met Adelson through her work in the advertising and marketing sector while employed by his company, Interface Group, prior to their relationship. The couple had three children together: sons Mitchell and Gary, and a daughter. During their marriage, Sullivan was involved in family business matters, reflecting her background in business operations. The divorce settlement reportedly included significant financial assets for Sullivan, such as cash payments and properties valued in the millions, and was reportedly contentious with allegations of infidelity on Adelson's part cited in media reports. Post-divorce, Sullivan has maintained a relatively private life with limited public information about her subsequent business activities or personal endeavors, though she is believed to have continued involvement in business or investment pursuits stemming from her settlement. Her connection to Adelson places her within networks of influence in the gaming and hospitality industries, particularly in Las Vegas and Atlantic City during the late 20th century.