AdventHealth
| Mardian J. Blair Administrative Center | |
| AdventHealth | |
| Formerly | Southern Adventist Health and Hospital Systems, Inc. | 
| Company type | Nonprofit organization | 
| Industry | Healthcare | 
| Founded | February 15, 1973; in Orlando, Florida | 
| Founder | Donald W. Welch | 
| Headquarters | 900 Hope Way, , | 
| Number of locations | 55 hospitals (2025) | 
| Area served | Colorado, Florida, Georgia, Illinois, Kansas, Kentucky, North Carolina, Texas, Wisconsin | 
| Key people | David Banks (President/CEO):2025-present | 
| Revenue | US$18 billion (2023) | 
| US$16.8 billion (2023) | |
| Number of employees | 100,000 (2025) | 
| Divisions | AdventHealth Central Florida Division AdventHealth East Florida Division AdventHealth West Florida Division AdventHealth Multi-State Division | 
| Website | www | 
| Part of a series on | 
| Seventh-day Adventist Church | 
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| Adventism | 
AdventHealth is a Seventh-day Adventist nonprofit organization headquartered in Altamonte Springs, Florida, that operates facilities in 9 states across the United States. It is the largest not-for-profit Protestant health care provider in the country. In 2021, it was the second largest hospital network in Florida. In February 2023, it was the fifteenth largest in the country. Currently AdventHealth operates 55 hospitals on fifty-three campuses as of May 2025.
On January 2, 2019, Adventist Health System Sunbelt Healthcare Corporation, also known as Adventist Health System/Sunbelt Inc. and just Adventist Health System rebranded its facilities under the trade name of AdventHealth. Except for its facilities in Colorado, Illinois and Texas that were part of joint ventures. AdventHealth announced on September 1, 2022, a new test to quickly detect brain-eating amoebas.