Family name Касымтаева (Касымтаева 
) , throughout the world, is a very rare cognomen. The last name Касымтаева is habitual in Central Asia, particularly Kazakhstan, where it is a rare surname. Very seldom, Касымтаева is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Касымтаева | Kazakhstan |