Principality Building Society
| Company type | Building society (mutual) | 
|---|---|
| Industry | Banking and financial services | 
| Founded | 1860 | 
| Headquarters | Cardiff, Wales, UK | 
| Number of locations | 71 | 
| Key people | 
 | 
| Products | Savings, Mortgages, Investments | 
| Revenue | £174.6 million (2022) | 
| £61.5 million (2022) | |
| £50.8 million (2022) | |
| Total assets | £11,257 million (2022) | 
| Total equity | £678.8 million (2022) | 
| Number of employees | 
 | 
| Website | Official website | 
Principality Building Society (Welsh: Cymdeithas Adeiladu Principality) is a building society based in Cardiff, Wales. At December 2022, the Society had total assets of more than £11 billion. It is the largest building society in Wales and the sixth largest in the United Kingdom.
Principality Building Society is a mutual, which means it is owned by its members rather than shareholders. It serves clients through the internet and telephone as well as at high street branches. It is a member of the Building Societies Association.