No, Omar is an Arabic name, but considering that Arabs reached the iberian peninsula and that Arabic and Spanish cultures interacted, it is possible to find Spanish Muslims with the name Omar.
Omar is Arabic-derived and means: speaker, flourishing, and long-lived
Omar Alfanno's birth name is Omar Enrique Alfanno Velzquez.
Omar Doom's birth name is Omar Makhdoomi.
Omar Boflot's birth name is Omar Elmissiry.
Omar Naber's birth name is Omar Kareem.
Yamil Omar's birth name is Yamil Omar Walls.
Omar Sivori's birth name is Enrique Omar Sivori.
Omar Anguiano's birth name is Omar Xavier Anguiano.
Omar Infante's birth name is Omar Rafael Infante.
Omar Bradley's birth name is Omar Nelson Bradley.
Omar Bravo's birth name is Omar Bravo Tordesillas.