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| Ó Taráin | Torrens, is cosúil - féach Ó Toráin. |
| Ó Toráin | Torrens: líonmhar i gCúige Uladh ach is deacair a rá cé mhéid díobh a bhaineann leis an sloinne dúchasach sa a bhí i nDoire tráth. Tá Torrance líonmhar in Albain. Is ionann tor agus túr agus, go meafarach, tiarna. |
| Torrens | numerous: Ulster generally. Ir. Ó Toráin. Some of these may be of English origin but the native name is connected with Derry. MacLysaght remarks that tracing origins in this case poses particular difficulties. MIF. |
Parishes where a Torrens and a second surname married each other.