It is not that very popular in the U.S, but there are A LOT of Shannon's in Ireland ( the name Shannon is very popular there)
Bree Shannon's birth name is Bretina Lynette Shannon.
Shannon Moore's real name is Shannon Moore
Johnny Shannon's birth name is John Shannon.
Shannon Ivey's birth name is Shannon Jarrell.
Shannon Esra's birth name is Shannon Esrechowitz.
Shannon Burwell's birth name is Shannon McNulty.
Shannon McGann's birth name is Shannon McGann.
Shannon is a good name
Shannon Spruill's birth name is Shannon Claire Spruill.
Shannon Magrane's birth name is Shannon Renee Magrane.
Shannon Leto's birth name is Shannon Christopher Bryant.
Shannon Laramore's birth name is Shannon Romaine Hain.