Ivan Anatolyevich Nedelko (; born 12 May 1986) is a Russian professional tennis player. He has a career-high ATP singles ranking of No. 235, achieved on 23 July 2018 and a best doubles ranking of No. 449, reached on 29 July 2019.
Nedelko made his ATP main draw debut at the 2011 St. Petersburg Open in the singles draw where he lost to Potito Starace.