Meaning This is a Scottish name that means 'red king'. The German meaning of the name is 'famously powerful'. Origin of Ruaridh Celtic , Irish Popular Middle Names Pronunciation 🔊 Listen Ruaridh RAOR-iy Similar Names Roary Rhodri Ruairidh Bhoomindra Russ Roy Ruari Tyrion King Phaneesh Year by Year Popularity of Ruaridh