Surname Ištvan (István 
, Ištvan , Иштван 
) , worldwide, is quite a common family name. The family name Ištvan is habitual in Hungary, where it is quite a common surname, Romania, where it is quite a rare surname, and Serbia. More prevalently, Ištvan is the forename as well as the last name.
| miloslav ištvan Czech composer and pianist, CZ (b. 1928) |
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| radomír ištvan Czech composer and music teacher, CZ (b. 1959) |
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| ivo ištvan Czech public prosecutor, CZ (b. 1965) |
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