|Ratigan||Quite numerous: Galway-Mayo etc. Ir. Ó Reachtagáin, reacht, a decree. Originally (10 cent), a "Mac" name; they were located in Roscommon. MIF.|
|Rhatigan||Quite numerous: Galway-Mayo-Sligo, Midlands etc. Ir. Ó Reachtagáin, reacht, decree. An ecclesiastical family of Roscommon. See also Rattigan. MIF.|
Parishes where Ratigan and a second surname are found together
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