What is the largest member of the weasel family in the United Kingdom?

The largest member of the weasel family in the United Kingdom is the European badger (Meles meles). Although commonly associated with the badger family, it is part of the Mustelidae family, which includes weasels, otters, and ferrets. European badgers can weigh up to 12 kilograms (about 26 pounds) and are known for their distinctive black and white facial markings and robust build. They primarily inhabit woodlands, grasslands, and rural areas across the UK.