Did you know that?
The Who were originally called The Detours, then changed their name to The Who after a suggestion by Townsend´s friend Richard Barnes. Their first manager, Pete Meaden, renamed them The High Numbers, and they released one unsuccessful single, Zoot Suit, under that name. When EMI dropped them the band sacked Pete Meaden and went back to being called The Who.
It is said another possible reason was because of Peter Townshend´s grandmother, who would always refer to popular bands as "The Who?" mainly because of hard hearing.