Delfines Coatzacoalcos

The team was founded in 1997 and they first appeared in Segunda División de México. They lasted six seasons until they were crowned champions in the Clausura 2003 and eventually won the final for promotion to the Primera División 'A' de México against Coras de Tepic. The team had good performances in the Segunda División, but in the Clausura 2004 they were relegated.

They achieved promotion again in 2005 after winning the final of the Segunda División de México against Pumas Naucalpan by a score of 5–4 on penalties. In regulation time, the match ended 4–4 in aggregate after the first match held in Coatzacoalcos, the Delfines won 2–1; while in the second match they lost 3–2 to Pumas Naucalpan.

Their history in the Primera División 'A' finished in 2006 when the franchise was sold and relocated to Villahermosa, Tabasco to make way for Guerreros de Tabasco.

In 2013, another team ended up setting up in the same area with the same name. Club de Fútbol Delfines Atlético Coatzacoalcos managed to win the Segunda División de México in 2014 and receive promotion to the newly formed Liga de Ascenso de México. Atlético Delfines de Coatzacoalcos managed to be promoted to the Liga de Ascenso after winning the final against Linces de Tlaxcala, but were unable meet the standards by the Federación Mexicana de Fútbol (FMF), so it was replaced by Coras de Tepic.

In 2024, the team was re-founded under the name Deportivo Delfines de Coatzacoalcos and was registered in the Tercera División de México, a league that represents the bottom level division of Mexican football.

In the 2025–26 season, the team was promoted to the Segunda División de México after reaching the zone finals in the Tercera División. In addition, the team won the Liga TDP champions trophy, proclaiming themselves the best team in the division in that season.