Valentina Meredova (née Nazarova; born 29 September 1984) is a Turkmenistani sprinter. She represented Turkmenistan at the 2008 Summer Olympics in Beijing. She competed in the 100 metres and placed sixth in her heat with a time of 11.94 s, without advancing to the second round. She competed in the IAAF World Championships in 2005, 2007 and 2015, never advancing beyond the heats.