William Henry Ralph Reader, known as Ralph Reader, was a British actor, theatrical producer and songwriter, known for staging the original Gang Show, a variety entertainment presented by members of the Scouting movement, and for leading community singing at FA Cup Finals.

A Gang Show is a theatrical performance by members of Scouts and Guides. The shows are produced with the dual aims of providing a learning opportunity for young people in the performing arts, as well as contributing to the artistic and cultural growth of their local community.