Margalita "Maka" Chakhnashvili-Ranzinger is a Georgian former tennis player.

Defending gold medalists Serena Williams and Venus Williams of the United States successfully defended their title, beating the Czech Republic's Andrea Hlaváčková and Lucie Hradecká in the final, 6–4, 6–4 to win the gold medal in Women's Doubles tennis at the 2012 Summer Olympics. The Williams sisters did not drop a set en route to their third gold medal in doubles. They became the first players in tennis history to win four Olympic gold medals, with the pairing also winning the doubles golds in 2000 and 2008, and Venus winning the 2000 singles and Serena winning the 2012 singles events. In the bronze medal match, Russia's Maria Kirilenko and Nadia Petrova defeated the United States' Liezel Huber and Lisa Raymond, 4–6, 6–4, 6–1.