The 2018 NWSL Championship was the sixth edition of the NWSL Championship, the championship match of the National Women's Soccer League (NWSL), and took place on September 22, 2018. In a rematch of the 2017 NWSL Championship, the North Carolina Courage became the first NWSL Shield holders to complete the league double, winning 3–0 against defending champions Portland Thorns FC. The match was played at Portland's home field Providence Park.