Technically no, in reality yes. Allow me to clarify this, Scrum is one of many Agile methodologies, but Scrum is the most popular and widely used of all Agile methodologies. Hence, when people are talking about “Agile” they are generally referring to Scrum. Most people don’t even know there are other methodologies besides Scrum. If you want to learn more about the other methodologies, just go to this link.