Family name Seydaly (Сейдалы 
, Сеидали , Сеыдали ) , all over the world, is a rare surname. The cognomen Seydaly is habitual in Kyrgyzstan, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Russia, where it is a very rare surname. More frequently, Seydaly is the forename as well as the last name.