Ameristar Casino is a casino and hospitality brand operating gaming and entertainment destinations in the United States. Its properties offer casino gaming, dining, hotel accommodation, entertainment and other leisure services, attracting visitors seeking recreational experiences. The Ameristar name is associated with several casino locations, including Ameristar Casino Hotel Kansas City in Missouri, Ameristar Casino Resort Spa St. Charles in Missouri, Ameristar Casino Hotel Council Bluffs in Iowa, and Ameristar Casino Resort Spa Black Hawk in Colorado. The ownership of individual properties varies, with some operated by Boyd Gaming Corporation and others by PENN Entertainment. These businesses contribute to local economies through employment, tourism, hospitality services and partnerships with surrounding businesses.

Community involvement is an important part of Ameristar's activities at several of its casino properties. Through charitable donations, employee volunteering, fundraising campaigns and partnerships with nonprofit organizations, Ameristar properties support initiatives addressing hunger, education, healthcare, youth development and community welfare. For example, Ameristar Casino Hotel Kansas City has supported Harvesters—The Community Food Network with funding to help provide meals to families experiencing food insecurity. Ameristar St. Charles has also contributed to organizations supporting people with disabilities and vulnerable children. Certain properties participate in charitable campaigns organized by their parent companies, helping direct funding to local nonprofit organizations. Because Ameristar refers to multiple casino properties, individual donations should be attributed to the specific location that made the contribution.