HEN PARTY = Despedida de Solteira

A party for a woman who is about to be married.
UK, Ireland:        hen(s) party/hen(s) night/hen(s) do
USA:                   bachelorette party
Canada:              also "stagette"
South Africa:       also girls' night out or kitchen tea [chá de cozinha]
bachelor's party: despedida de solteiro