Martin V was a pope in the 15th century and there are several synonyms or alternative names for him. One of the most common is Pope Martin V, which refers to his position as the head of the Catholic Church. Another synonym is Oddone Colonna, which was his birth name before he became pope. Additionally, he is sometimes referred to as Martinus Quintus, which is the Latin form of his name. Finally, some sources also refer to him as Martin of Aragon, although this is less common as he was not from that region. Regardless of what name is used, Martin V is remembered as a significant figure in the history of the Catholic Church.