Serhiy Heorhiyovych Valter (Ukrainian: Сергій Георгійович Вальтер, also known as Serhij Valter; January 21, 1958 — February 25, 2015) was a Ukrainian politician. He was the Secretary of the City Council of Melitopol, Ukraine (2002–2010) and Mayor of Melitopol (2010–2015).