A.D. Isidro Metapán

In 2000, Metapán FC and Isidro Menéndez, two Second Division strugglers, chose to merge. In 2001, the newly born club won promotion to the Primera División with a 3–2 playoff win over Jocoro FC.

The club quickly consolidated their position as a mid-table side, and starting in Apertura 2004 began making title pushes. They qualified for the playoffs for the first time that year by defeating Luis Ángel Firpo in a fourth place playoff. In Apertura 2005, they finished the regular atop the table, defeated Once Municipal in the semi-finals, and only fell short of their first title after a 2–0 extra time loss to Vista Hermosa.

In Clausura 2007, the club finally bettered that result, taking home their first ever championship with a 1–0 extra time win over Luis Ángel Firpo. That qualified the team for the CONCACAF Champions League for the very first time, although they did not get past the preliminary rounds.

Over the next several years, Isidro Metapán began to surpass the traditional powers of Salvadoran football (FAS, Firpo, Alianza, and Águila). They won their second title in a penalty shootout over Chalatenango in Apertura 2008, then defended their crown in Clausura 2009 with a 1–0 win over Luis Ángel Firpo. Alexander Amaya scored that winner in the 58th minute.

After a near miss in the Apertura 2009, Isidro returned to the top for the third time in four seasons by winning the championship of Clausura 2010. Léster Blanco and Paolo Suárez each scored in a 3–2 win over Águila. In each season from 2007 to 2010, the club had won the title at least once. They would win it for a fourth time in five in Apertura 2010, beating Alianza 4–3 in a penalty shootout.

2011–2012 was the most successful season in club history. It started in the summer, in the CONCACAF Champions League. Metapan qualified for the group stages, and a 2–0 win over Mexican team Santos Laguna allowed them to qualify out of the groups into the quarterfinals for the first time. Although UNAM Pumas eliminated them at that stage, it had still been a very successful run.

Meanwhile, domestically, Metapán won a sixth title in eight years with a 1–0 victory over Once Municipal the lone goal coming from Paolo Suárez in the 51st minute.[6]

They narrowly missed a repeat that spring in the Clausura, losing 2–1 to Áquila in the championship match. However, they recovered to win a seventh championship in nine years, defeating Alianza in extra time to win the Apertura 2012. For a moment it looked like the hero would be Metapán's top goal scorer Nicolás Muñoz, who scored from a free kick in extra time.[7] However Sean Fraser of Alianza equalized with a header, forcing the match into penalties. After a dramatic shootout, Isidro Metapán won 6–5.[8]

They won their 8th title in Apertura 2013, beating FAS 1–0 on a goal from Andrés Flores in the 85th minute.[9]

On 25 May 2014 Isidro Metapán won the Primera División title for the ninth time in the club history, defeating Dragón on penalties 6–5.[10]

Title number 10 came in Apertura 2014, as Metapán defeated Águila in penalties 3–2. Once again, Nicolás Muñoz played an important role in taking the match to penalties with an extra time goal.[11]

The 2015–16 season was to have been the last season at the Estadio Jorge Calero Suárez, with the club moving to their new 10,000-seater stadium Complejo Deportivo Metapán in time for the 2017–18 season. However, due to the club being in financial crisis, work on the new stadium has since stopped.

Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

No. Pos. Nation Player — FW  SLV Gerardo Guirola (at Once Deportivo for the 2020–21 season)

Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

No. Pos. Nation Player —  ARG Guillermo Vernetti! (from Defensores de Belgrano) —  SLV Gerber Chávez (from Aguila) —  SLV Walter Chiguila (on loan from FAS) —  SLV Fernando Castillo (from Once Deportivo de Ahuachapan)

No. Pos. Nation Player —  SLV TBD (from TBD) —  SLV TBD (from TBD) —  SLV TBD (from TBD)

Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

No. Pos. Nation Player —  BRA Ricardinho (to TBD) —  COL Yeison Murillo (to TBD) —  SLV Cristian Cisneros (to Firpo) —  SLV Alexander Larin (to TBD) —  SLV Julio Cerritos (to TBD)

No. Pos. Nation Player —  SLV Luis Figueroa (to TBD) —  SLV Jaime Ortiz (to Firpo]) —  SLV Carlos Garcia (to TBD)

As of 2021.

Position	Name
Manager	Juan Cortés Dieguez *
Assistant manager	Fabio Gastón Larramendi *
Reserve manager	Héctor Mejía
Under 17 Manager	TBD
Goalkeeper coach	Fidel Mondragón
Physical Trainer	Mauro Giobbi *
Ladies manager	Edelio Ramirez
Physiotherapy	Tedinho Dos Santos
Utility	William Martinez and Jonathan Avelar
Kinesiologo	Roberto Antonio Bayona
Sports director	Carlos Martinez *

15 – Retired in 2011 in recognition of goalkeeper Álvaro Misael Alfaro. Alfaro was a major player for Metapán who suffered a neck injury which forced him to retire from the game. In 2011, the number was brought out of retirement and given to back-up goalkeeper.[12]

18 – Retired in 2011 in recognition of midfielder Nelson Rivera. Rivera was shot in the head and died after unknown gunmen attacked the car he was traveling in. The number was brought out of retirement in 2012.[12]

20 – Retired in 2015 in recognition of midfielder Héctor Mejía. Mejía was a long serving and major player for Metapán, he participated in all 10 of Metapán title victories. He retired as Metapán most decorated and most capped player in their history.