Manchaca is an unincorporated community in Travis County, Texas, United States. The population was 1,133 as of the 2010 census.
Over time there has been much conjecture as to the origin of the name "Manchaca". One school holds that "Manchaca" is derived from the Choctaw word imashaka, meaning "behind it" or "to the rear." However, another theory holds that Manchaca Springs was named for Tejano army officer José Antonio Menchaca. The current pronunciation of the name 'Manchaca' stems from simple Anglicization.An early owner of Manchaca Springs was Washington D. Miller, a South Carolina native who went on to serve as a Republic of Texas congressman, private secretary to Sam Houston and after Texas joined the Union, Secretary of State of Texas. The area began to grow when the International-Great Northern Railroad opened in 1880. Local development increased by the mid-1980s, and accelerated through the early 2000s.