Charities and advice services
Dementia UK phone numbers
Edited by Richard BarkerChecked 14 October 2026
Dementia UK publishes 2 numbers for you to call on its own website. We list each one with the page it is on (1 page in all), a short quote from that page and the date we checked it.
Numbers to call Dementia UK
What each line is for, as Dementia UK describes it, with opening hours where it gives them.
- 0800 888 6678
You call them on this number
Dementia Helpline
Source: “Call our Dementia Helpline 0800 888 6678” (opens in a new tab). Checked 14 October 2026.
- 0300 365 5500
You call them on this number
Supporter care and donations
Source: “contact our friendly Supporter Care team. 0300 365 5500” (opens in a new tab). Checked 14 October 2026.
How scams that copy charities and advice services work
If a caller asks for a donation, you can hang up and give through the charity’s own website instead. If a caller asks for a code sent to your phone or access to your computer, hang up.
Ofcom says scammers can fake the number that appears on your phone, which is called spoofing, and that they imitate UK numbers to look like a trusted person or organisation. Knowing details about you does not make a caller genuine.
This could still be a scam call
Criminals can make their number look like a genuine one (this is called spoofing). If someone calls from this number and asks for money, bank details, a code or passwords, hang up. Then call Dementia UK back on a number you've found yourself, such as the one on their own website or on a letter or bill from them.
Safe ways to check
- Dementia UK's own contact page (opens in a new tab): Where this number is published.
- Report Fraud (opens in a new tab): Report fraud and cyber crime in England, Wales and Northern Ireland. In Scotland, call Police Scotland on 101.
- Forward scam texts to 7726 (opens in a new tab): It is free, and reports the message to your mobile provider.
- How number spoofing works: Why a genuine number on your screen does not prove who is calling.
Questions about Dementia UK’s numbers
What numbers can I call Dementia UK on?
Dementia UK publishes 2 numbers for the public to call. They are: 0800 888 6678 (Dementia Helpline); 0300 365 5500 (Supporter care and donations). Check the source page for each one before you call, as numbers and opening hours change.
Does Dementia UK publish a number on its own website that is not listed here? Suggest a number for Dementia UK.
Sources and checks
This page relies on:
Checked on 14 October 2026. Read how we build the directory. How we check our information. Spotted a mistake? Tell us and we will put it right.