Dmitri Yurievich Sitak (born 4 March 1983) is a Russian tennis player playing on the ATP Challenger Tour. On November 17, 2003, he reached his highest ATP singles ranking of World No. 356, whilst his highest doubles ranking of 138 was reached on March 22, 2010. He is the older brother of Artem Sitak, who is also a tennis player. Sitak was the first player that future world number one player Daniil Medvedev beat as a professional, when in March 2011 Medvedev won their match at an ITF Futures event in Russia.^[1]

Result	No.	Date	Tournament	Surface	Partner	Opponents	Score
Win	1.	10 May 2009	Sanremo, Italy	Clay	Yuri Schukin	Daniele Bracciali Giancarlo Petrazzuolo	6–4, 7–6(7–4)
Win	2.	8 November 2009	Chuncheon, South Korea	Hard	Andis Juška	Lee Hsin-han Yang Tsung-hua	3–6, 6–3, [10–2]
Loss	3.	14 March 2010	Rabat, Morocco	Clay	Oleksandr Dolgopolov Jr.	Ilija Bozoljac Daniele Bracciali	4–6, 4–6

• Dmitri Sitak at the Association of Tennis Professionals
• Dmitri Sitak at the International Tennis Federation