The Ashina clan was descended from the Taira clan through the Miura clan with the name Ashina (蘆名) derived from the name of the area known as Ashina (present Ashina (芦名) in Yokosuka City).
蘆名（あしな）氏は、平氏系統の三浦氏から興った氏族で、蘆名（現在横須賀市芦名）の地名に由来する。