Last name Келдиш (Келдиш 
, Keldysh 
) , globally, is a very rare surname. The family name Келдиш is characteristic of Kyrgyzstan, where it is a rare surname, Ukraine, where it is a very rare surname, and Nicaragua. In absolute terms, it most frequently occurs in Ukraine, Kyrgyzstan, and Russia. Also, Келдиш is the forename as well as the last name.