The 2012 Open GDF Suez was a women's professional tennis tournament played on indoor hard courts. It was the 20th edition of the Open GDF Suez (formerly known as the Open Gaz de France) and was a Premier tournament on the 2012 WTA Tour. It took place at Stade Pierre de Coubertin in Paris, France from February 4 through February 12, 2012.

The following players received wildcards into the main draw:

The following players received entry from the qualifying draw:

The following players received entry as Lucky Losers into the singles main draw:

The following players withdrew from the singles main draw:

The following players retire from the singles main draw:

The following player retire from the doubles main draw:

Angelique Kerber def. Marion Bartoli, 7–6^(7–3), 5–7, 6–3

Liezel Huber / Lisa Raymond def. Anna-Lena Grönefeld / Petra Martić, 7–6^(7–3), 6–1

Open GDF Suez, formerly Open Gaz de France, is a Premier level tennis tournament on the WTA Tour held in Paris, France. Held since 1993, the tournament is played on indoor hardcourts.

Amélie Mauresmo holds the record for the most singles titles with three in 2001, 2006 and 2009.

GDF Suez S.A. is a French multinational electric utility company which operates in the fields of electricity generation and distribution, natural gas and renewable energy. The world's largest utility after taking control of Britain's International Power, the company was initially formed by the merger of Gaz de France and Suez on 22 July 2008. The firm also holds a 35% stake in Suez Environnement, the water treatment and waste management company spun off from Suez at the time of the merger.

As of 2010 GDF Suez employs 236,000 people worldwide, including 1,200 researchers and experts at 9 R&D centers, with revenues of €84.5 billion. GDF Suez is listed on the Euronext exchanges in Paris and Brussels and is a constituent of the CAC 40 and BEL20 indices.

On February 25, 2006, French Prime minister Dominique de Villepin announced the merger of water supply and treatment, waste management and energy company Suez and power firm Gaz de France, with the aim of creating the world's largest liquefied natural gas company. Since the French state owned over 80% of Gaz de France, it was necessary to pass a new law in order to make the merger possible. Whilst Nicolas Sarkozy was for several months opposed to the Villepin government’s plans for a merger of the two companies, preferring a three-way deal with Italy's Enel which would maintain a controlling stake for the state, he subsequently accepted the government proposal.

Suez (Arabic: السويس‎ as Suwais, Egyptian Arabic: [esseˈweːs]) is a seaport city (population ca. 497,000) in north-eastern Egypt, located on the north coast of the Gulf of Suez (a branch of the Red Sea), near the southern terminus of the Suez Canal, having the same boundaries as Suez governorate. It has three harbors, Adabya, Ain Sokhna and Port Tawfiq, and extensive port facilities. Together they form a metropolitan area. Railway lines and highways connect the city with Cairo, Port Said, and Ismailia. Suez has a petrochemical plant, and its oil refineries have pipelines carrying the finished product to Cairo.

In the 7th-century CE a town named "Kolzum" stood just north of the site of present-day Suez and served as eastern terminus of a canal built by Amr ibn al-'As linking the Nile River and the Red Sea. Kolzum's trade fell following the closure of the canal in 770 by the second Abbasid caliph al-Mansur to prevent his enemies in Arabia from accessing supplies from Egypt and the lands north of it. Nonetheless, the town benefited from the trade that remained between Egypt and Arabia. By 780 al-Mansur's successor al-Mahdi restored part of the canal. The Qarmatians led by Hasan ibn Ahmad defeated a Fatimid army headed by Gawhar al-Siqilli at Kolzum in 971 and thereby captured the town. Following his defeat in Cairo by al-Siqilli at the end of that year, Hasan and his forces retreated to Arabia via Kolzum. Suez was situated nearby and served as a source of drinking water for Kolzum according to Arab traveler al-Muqaddasi who visited in 986.

Maria Yuryevna Sharapova (Russian: Мария Юрьевна Шарапова [mɐˈrʲijə ˈjurʲjɪvnə ʂɐˈrapəvə] ( listen), US: /ʃɑrəˈpoʊvə/, UK: /ʃærəˈpoʊvə/; born April 19, 1987) is a Russian professional tennis player and former world no. 1. A United States resident since 1994, Sharapova has won 26 WTA singles titles, including three Grand Slam singles titles at the 2004 Wimbledon, 2006 US Open and 2008 Australian Open. She has also won the year-end WTA Tour Championships in 2004. The Women's Tennis Association has ranked Sharapova world no. 1 in singles on four separate occasions. She became the world no. 1 for the first time on August 22, 2005, and last regained the ranking for the fourth time on May 19, 2008. As of May 28, 2012, Sharapova is ranked world no. 2. She has been in six Grand Slam finals with the final record 3–3.

Sharapova made her professional breakthrough in 2004 at age 17, when she defeated two-time defending champion and top seed Serena Williams in the 2004 Wimbledon final for her first Grand Slam singles title. She entered the top 10 of the WTA Rankings with the win. Despite not winning a major in 2005, Sharapova briefly held the no. 1 ranking, and reached three Grand Slam semifinals, losing to the eventual champion each time. She won her second major at the 2006 US Open defeating then-world no. 1 Amélie Mauresmo in the semifinals and world no. 2 Justine Henin in the final.