Hetty Bower was a British political activist and suffragette, known for devoting her life to political campaigning since the early 1920s.

At the age of 108, Hetty Bower was the oldest member of Humanists UK when she died, and also the UK’s longest-standing political activist, having begun her campaigning in the early 1920s. Hetty participated in the 1926 General Strike and the Battle of Cable Street in 1936.

During the Second World War, she ran a refugee hostel for Czechoslovakians. She was a founding member of the Campaign For Nuclear Disarmament, and a veteran of many other progressive causes.