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
Shannon McGann's birth name is Shannon McGann.
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 is a good name
Shannon Terhune's birth name is Mary Shannon Terhune.
Shannon Dragoo's birth name is Shannon Michelle Dragoo.
Shannon Meilak's birth name is Shannon Kelly Meilak.
Shannon Magrane's birth name is Shannon Renee Magrane.