There doesn't appear to be a special Gaelic spelling for the name so it would be spelled as in English,
however the Irish name Gobnait was anglicized Deborah/Abigail/Dora etc.
Debra Veal's birth name is Debra Newbury.
Debra Mooney's birth name is Debra Vick.
Debra LaFave's birth name is Debra Beasley.
Debra Box's birth name is Debra Lewis.
Debra Lawrance's birth name is Lawrance, Debra.
Debra Opri's birth name is Debra Ann Opri.
Debra Tate's birth name is Debra Ann Tate.
Debra Messing's birth name is Debra Lynn Messing.
Debra Laws's birth name is Debra Rene Laws.
Debra Garrett's birth name is Debra Frances Little.
Debra Winger's birth name is Winger, Mary Debra.
Debra Woods's birth name is Debra Janelle Shoemaker.