What is romeo last name?

Romeo's last name is Montague. In William Shakespeare's play "Romeo and Juliet," the Montagues and Capulets are rival noble families in Verona, Italy. Romeo is a member of the Montague family, while his love interest, Juliet, is a Capulet. Their love is forbidden due to the families' feud, which ultimately leads to tragedy. The Montague family members include Romeo's parents, Lord and Lady Montague, as well as his cousin, Benvolio Montague.