The privately funded stadium, which opened last month, is home to the league's Orlando Pride, as well as Major League Soccer's Orlando City. The facility has a natural grass playing surface.
It also has a group of rainbow-colored seats in section 12, a tribute to the victims of last year's Pulse nightclub shooting.
"The appetite for soccer in Orlando is at an all-time high, and we are thrilled to contribute to this movement by bringing the NWSL Championship to Orlando," Orlando City majority owner Flavio Augusto da Silva said in a statement Saturday announcing the selection.
The league's top four teams at the end of the season advance to the semifinals, scheduled for Oct. 7-8.
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