Okatie is an unincorporated suburban community west of Hilton Head Island, located in Beaufort and Jasper counties in the Lowcountry of South Carolina. Okatie takes its name from the nearby Okatee River, an estuary of the Port Royal Sound. The headquarters of the Beaufort-Jasper Water and Sewer Authority are located in Okatie, as are the Beaufort-Jasper Academy for Career Excellence and John Paul II Catholic High School.