The name Rigby is of English origin, derived from the Old Norse words 'rigr' meaning 'chief' or 'king' and 'by' meaning 'settlement' or 'village'. It is primarily used as a surname but has also been adopted as a given name. The lucky number associated with Rigby is 6, which symbolizes harmony, balance, and peace. The name Rigby signifies a person who is strong, courageous, and charismatic, with a natural ability to lead and inspire others.