Dinara Mikhailovna Safina (Russian: Динара Михайловна Сафина, Tatar: Динара Мөбин кызы Сафина, Dinara Möbin kızı Safina), born April 27, 1986 in Moscow, is a Russian professional tennis player of Tatar background. Safina's career high ranking is World No. 1.
Safina was runner up in singles at the 2008 French Open, 2009 Australian Open, and the 2009 French Open, falling to Ana Ivanovic, Serena Williams, and Svetlana Kuznetsova, respectively. She has had success at Grand Slam events in women's doubles by winning the 2007 US Open with Nathalie Dechy. She also won the Olympic silver medal in women's singles at the 2008 Summer Olympics in Beijing.
She is the younger sister of former World No. 1 men's player Marat Safin. She and her brother are the first brother-sister tandem in tennis history to both achieve No.1 rankings.