Decembeard is an annual campaign held every December, organized by Bowel Cancer UK to raise awareness and garner support for bowel cancer. The initiative encourages individuals to grow beards or mustaches, or even wear fake ones, as a symbol of solidarity with those impacted by the disease.

The primary aim of Decembeard is to educate people about the symptoms of bowel cancer, emphasizing the importance of early detection. As the UK's second-largest cancer killer, bowel cancer claims the lives of over 44 individuals daily.