Skip to main content
Home
Contact Us
News
Search
Search
Close Search Modal
Toggle Search Form
Toggle menu
About us
Our vision and our work
The Welsh Language Commissioner’s Strategic Plan 2025–2030
Annual Report 2023-24
Governance
News
Work for us
Policies and Corporate Documents
The Welsh Language Comissioner's Newsletters
Your Rights
Make a complaint
Freedom to use Welsh
Your legal rights
Iaith Gwaith
'Defnyddia dy Gymraeg' campaign
'Defnyddia dy Gymraeg' form
What do organisations have to do?
Who operates language duties?
Welsh Language Standards
Welsh language schemes
Enforcement policy
The Welsh Language Commissioner's Education Pack
Public Organisations
Welsh language standards
The imposition process
Challenge and appeal
Codes of practice
Compliance notices
Advice and support
Advice documents
Effective practices
Reports
Significant investigations
Policy Making Standards
Promoting Compliance Programme
Complaints and investigations
Register of enforcement action
The Welsh Language Tribunal
Freedom to use Welsh
Welsh language schemes
Regulatory Outcomes
Businesses and charities
Cynnig Cymraeg
Research
Guidance
Using Welsh on social media
Sports Resources
Training
Banking services available in Welsh
Policy and research
Our policy opinions
Education
Health
Housing and planning
The economy
Broadcasting and Media
Research
The position of the Welsh language 2016–20
2021 Census
Impact of the 2021 Census results on the work of the Welsh Language Commissioner
Data dashboard: Who speaks Welsh in Wales?
Welsh place-names
Place-names standardisation panel
Technical guidance
Why standardise place-names?
International place-names
Standardised Welsh Place-names list
Using Welsh
International work
Publications & Resources
Standardised Welsh Place-names list
Trelystan
Standard form
Trelystan
English form
Trelystan
Type
Settlement
Postcode
SY21
Grid reference
SJ2603
Local authority
Powys
Notes
Discover more
Wikipedia
Wikidata
List of Historic Place Names
