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 Boflot's birth name is Omar Elmissiry.
Omar Doom's birth name is Omar Makhdoomi.
Omar Naber's birth name is Omar Kareem.
Omar Sivori's birth name is Enrique Omar Sivori.
Omar Stoutmire's birth name is Omar Array Stoutmire.
Omar Anguiano's birth name is Omar Xavier Anguiano.
Omar Bradley's birth name is Omar Nelson Bradley.
Omar Bravo's birth name is Omar Bravo Tordesillas.
Kanza Omar's birth name is Kanza Mary Omar.