Eduardo Rergis Pacheco (born 20 April 1956) is a Mexican former footballer and manager.
Rergis played as a central defender for Club América, Atlante, Oaxtepec, Tampico Madero, Tigres UANL and Veracruz.
Rergis played for Mexico at the 1976 Summer Olympics in Montreal and won a gold medal in football at the 1975 Pan American Games. He also participated in the 1977 FIFA World Youth Championship in Tunisia.
After he retired from playing, Rergis became a football coach. He has managed Deportivo Irapuato, Correcaminos UAT and Veracruz. He also led the Mexico U-20 team at the 2003 FIFA U-20 World Cup. He was an interim manager for Santos Laguna in 2011.
Rergis's sons, Guillermo and Eduardo, are also Mexican former footballer.