Standardised Welsh Place names
Notes
Definite article
The Welsh definite article (y/yr) should be included in full and capitalised when preceding this name on signage where the place-name is the main focus of the sign. Further advice on how to display place-names on signage can be found in the technical guidance on our website.
When writing this name as part of a Welsh sentence, the definite article should be shown in lower case (e.g. ‘yn yr Olchfa’ (in Olchfa). It can also be contracted following a vowel in accordance with the rules of Welsh grammar, e.g. ‘mynd i’r Olchfa’ (going to Olchfa).
Although it is expected that a single form including the definite article be displayed on signage, there is no need to precede the name with the definite article within an English sentence, e.g. ‘going to Olchfa’.