Scottrade Center is a 19,150-seat arena located in downtown St. Louis, Missouri, United States. It is the home of the St. Louis Blues of the National Hockey League. The arena opened in 1994 and was known as Kiel Center until 2000 and Savvis Center from 2000 to 2006. The current name comes from financial firm Scottrade, based in St. Louis, who purchased naming rights in 2006. With the announced acquisition of Scottrade by TD Ameritrade, it is anticipated the arena will be renamed TD Ameritrade Center in late 2017.

Besides ice hockey, the arena features a range of programming, including professional wrestling, concerts, ice shows, family shows, and other sporting events. It hosts approximately 175 events per year, drawing nearly 2 million guests annually. For the first quarter 2006, Scottrade Center ranked second among arenas in the United States and fourth worldwide in tickets sold. Industry trade publication Pollstar ranks Scottrade Center among the top ten arenas worldwide in tickets sold to non-team events.

The largest crowd to attend an event at the arena was 22,612, which happened twice during the 2007 Missouri Valley Conference Tournament, known as "Arch Madness".

The arena is frequently selected by the NCAA for championship events, and played host to the NCAA Frozen Four Hockey Championships in April 2007, the NCAA Women’s Final Four Basketball Championships in 2009, and the NCAA Wrestling Championships in 2000, 2004, 2005, 2008, 2009, 2012, and 2015.