:2012 Aircel Chennai Open

{{Use dmy dates|date=February 2019}}

{{Use Indian English|date=February 2019}}

{{Infobox tennis event|2012|Aircel Chennai Open|

| date=2–8 January

| edition=17th

| category=250 series

| draw=32S / 16D

| prize_money=$398,250

| surface=Hard / outdoor

| location=Chennai, India

| venue=SDAT Tennis Stadium

| champs={{flagicon|CAN}} Milos Raonic{{cite web |title=2012 Chennai – Singles draw |url=https://www.atptour.com/en/scores/archive/chennai/891/2012/draws?matchtype=singles |publisher=Association of Tennis Professionals (ATP)}}

| champd={{flagicon|IND}} Leander Paes / {{flagicon|SRB}} Janko Tipsarević{{cite web |title=2012 Chennai – Doubles draw |url=https://www.atptour.com/en/scores/archive/chennai/891/2012/draws?matchtype=doubles|publisher=Association of Tennis Professionals (ATP)}}

}}

The 2012 Aircel Chennai Open was a 2012 ATP World Tour tennis tournament, played on outdoor hard courts. It was the 17th edition of the only ATP tournament taking place in India and took place at the SDAT Tennis Stadium in Chennai, India. It was held from 2 to 8 January 2012. Stanislas Wawrinka was the defending singles champion coming into the tournament but was knocked out in the quarterfinals. Former champion Marin Čilić was originally in the field as the 4th seed before pulling out with a patellar tendon injury.{{cite news|url=http://timesofindia.indiatimes.com/sports/tennis/top-stories/Former-champion-Cilic-ruled-out-of-Chennai-Open/articleshow/11093698.cms|title=Former Champion Cilic ruled out of Chennai Open |date=13 Dec 2011|work=Times of India |accessdate=13 Dec 2011}} Finally, fourth seed Milos Raonic from Canada defeated world no. 9 and top seeded Serb Janko Tipsarević to win only his second ATP title.{{cite news| url=http://www.thehindu.com/sport/tennis/article2785939.ece | location=Chennai, India | work=The Hindu | first=Kunal | last=Diwan | title=Missile-launcher Raonic shoots downs Tipsarevic | date=9 January 2012}} Raonic became the first player since Roger Federer in 2008 to win an ATP title without losing a serve. The doubles title went to the Indo-Serb pair of Leander Paes and Janko Tipsarević after they defeated the Israeli pair of Jonathan Erlich and Andy Ram.[https://archive.today/20120714211940/http://sports.ndtv.com/tennis/news/item/183666-paes-tipsarevic-win-chennai-open-title?pfrom=home-otherstories Paes-Tipsarevic win Chennai Open title | News | NDTVSports.com]