Alejandro "Álex" Domínguez Romero (born 30 July 1998) is a Spanish professional footballer who plays as a goalkeeper for Segunda División club SD Eibar, on loan from the French Ligue 1 side Toulouse FC.

Born in Granollers, Barcelona, Catalonia, Domínguez represented CE Sabadell FC as a youth before making his senior debut with the reserves on 6 December 2014, starting in a 2–1 Tercera División home loss against UE Castelldefels.

In 2016, Domínguez was loaned to CF Damm for one year, to finish his formation; upon returning, he was assigned to Espanyol's B-team also in the fourth division.

[3] Domínguez made his first team debut on 20 July 2020, starting in a 5–1 home routing of Extremadura UD in the Segunda División.

[5] On 27 July 2021, after losing his starting spot back to Valles, Domínguez was loaned to second division newcomers UD Ibiza for a year.