Vadim Malakhatko (Ukrainian: Вадим Малахатько; born 22 March 1977) is a Ukrainian (until 2007) and Belgian (since 2007) chess grandmaster. He was a member of the gold medal-winning Ukrainian team at the 2001 World Team Chess Championship. In 2000, he won with the Ukrainian team a bronze medal in the 34th Chess Olympiad in Istanbul.
- 1999 – came second at Alushta tournament
- 2004 – tied for first with Petar Genov in the 3rd Condom Chess Open
- 2006 – won Politiken Cup in Copenhagen
- 2007 – tied for 2nd–4th with Loek van Wely and Alexei Fedorov in the President's Cup in Baku
- 2007 – tied for 2nd–7th with Kiril Georgiev, Dimitrios Mastrovasilis, Mircea Parligras, Hristos Banikas and Dmitry Svetushkin in the Acropolis International Chess Tournament
- 2007/08 – tied for first with Nidjat Mamedov and Valeriy Neverov in the Hastings International Chess Congress
- 2009 – came in first at the Arcapita Open in Bahrain
- 2009 – tied for 2nd–3rd with Edvins Kengis at the Al Saleh 8th International Open in Yemen
- 2009 – tied for 3rd–8th with Anton Filippov, Elshan Moradiabadi, Merab Gagunashvili, Alexander Shabalov and Niaz Murshed in the Ravana Challenge Tournament in Colombo
- 2010 – tied for 1st–3rd with Tigran Gharamian and Deep Sengupta at the 24th Open Pierre and Vacances
- 2011 – won the 8th edition of the Balagna Open in Corsica
On the May 2011 FIDE Elo rating list, Malakhatko has a rating of 2546. His handle on the Internet Chess Club is "Vadim77".
He is married to WGM Anna Zozulia.
- Vadim Malakhatko vs Bogdan Lalic, 83rd Hastings Chess Congress 2008, Queen's Gambit Accepted: Gunsberg Defense, Prianishenmo Gambit (D24), 1-0
- Vadim Malakhatko vs Jonathan Speelman, Isle of Man 2007, Queen's Indian Defense: Kasparov-Petrosian Variation, Petrosian Attack (E12), 1-0
- Vadim Malakhatko vs John K Shaw, Cappelle la Grande 2007, Slav Defense: General (D10), 1-0