Miss. Code Ann. § 81-7-3

The name of all branch banks in this state shall include the name of the parent bank, followed by the name of the municipality in which the branch is domiciled, followed in turn by the word “branch”, and such name shall be prominently displayed upon the branch bank premises. Where an established bank is annexed or merged as a branch bank, then the name of the bank so annexed or merged may be retained if followed by appropriate words indicating it as a branch of the parent bank.