|MacWatters||Quite numerous: Down-Antrim. Ir. Mac Uaitéir, from first name Walter, a Teutonic name meaning "mighty army" and popular amongst the Anglo-Normans. SI.|
|Waters||numerous: all areas, especially Midlands & Connacht. An English name appearing in 17 cent; but it also stands for a number of indigenous names: Ó Tuairisc, Ó Fuaruisce Ó h-Uarghuis, Mac Con Uisce. See also Coldwell. MIF & SGG.|
|Waterson||rare: Belfast area. A Scottish name, apparently toponymic. Also English, Walter's son. SS & DBS.|
|Watters||numerous: mainly Ulster, also N Leinster, Galway, Sligo. Variant of Waters, i.e. another version of first name Walter. Those of Connacht probably indigenous.|
|Watterson||numerous: Derry etc. Another "Walter" derivative.|
Parishes where Waterson and a second surname are found together
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