Ysleta del Sur Pueblo (also Tigua Pueblo) is a Puebloan Native American tribal entity in the Ysleta section of El Paso, Texas. Its members are Southern Tiwa people who had been displaced from Spanish New Mexico in 1680-1681 during the Pueblo Revolt against the Spaniards.

The people and language are called Tigua (pronounced tiwa). They have maintained a tribal identity and lands in Texas. Spanish mostly replaced the indigenous language in the early 1900s, and today, English is increasingly gaining ground in the community. Today there are efforts to revive the indigenous language.

As part of the Indian termination policy followed by the federal government from the 1940s through the 1960s, the Tigua became the last tribe formally terminated. They were recognized as the Tigua Indians of El Paso in 1967 as a Texas Indian tribe; House Bill 888 was passed during the 60th Legislature, Regular Session, transferring all trust responsibilities for the Tigua Indians to the Texas Indian Commission. On 12 April 1968, under Public Law 90–287 82 Stat. 93 the United States Congress relinquished all responsibility for the Tiwa Indians of Ysleta, Texas to the State of Texas. The Tiwa Indians Act specified that tribal members would be ineligible for any services, claims or demands from the United States as Indians.